diff --git a/plugins/gradle/README.md b/plugins/gradle/README.md
index 158494167..af7b8cfae 100644
--- a/plugins/gradle/README.md
+++ b/plugins/gradle/README.md
@@ -82,6 +82,7 @@ apply plugin: "io.github.kobylynskyi.graphql.codegen"
 | `generateRequests`                              | Boolean                                            | False                                         | Specifies whether client-side classes should be generated for each query, mutation and subscription. This includes: `Request` class (contains input data) and `ResponseProjection` class (contains response fields). |
 | `requestSuffix`                                 | String                                             | Request                                       | Sets the suffix for `Request` classes. |
 | `responseProjectionSuffix`                      | String                                             | ResponseProjection                            | Sets the suffix for `ResponseProjection` classes. |
+| `parametrizedInputSuffix`                       | String                                             | ParametrizedInput                             | Sets the suffix for `ParametrizedInput` classes. |
 | `parentInterfaces`                              | *See [parentInterfaces](#option-parentinterfaces)* | Empty                                         | Block to define parent interfaces for generated interfaces (query / mutation / subscription / type resolver) |
 
 
diff --git a/plugins/gradle/graphql-java-codegen-gradle-plugin/src/main/java/io/github/kobylynskyi/graphql/codegen/gradle/GraphQLCodegenGradleTask.java b/plugins/gradle/graphql-java-codegen-gradle-plugin/src/main/java/io/github/kobylynskyi/graphql/codegen/gradle/GraphQLCodegenGradleTask.java
index 652d2ae24..7e25fe6aa 100644
--- a/plugins/gradle/graphql-java-codegen-gradle-plugin/src/main/java/io/github/kobylynskyi/graphql/codegen/gradle/GraphQLCodegenGradleTask.java
+++ b/plugins/gradle/graphql-java-codegen-gradle-plugin/src/main/java/io/github/kobylynskyi/graphql/codegen/gradle/GraphQLCodegenGradleTask.java
@@ -51,6 +51,7 @@ public class GraphQLCodegenGradleTask extends DefaultTask implements GraphQLCode
     private Boolean generateRequests;
     private String requestSuffix;
     private String responseProjectionSuffix;
+    private String parametrizedInputSuffix;
     private final ParentInterfacesConfig parentInterfaces = new ParentInterfacesConfig();
     private String jsonConfigurationFile;
 
@@ -84,6 +85,7 @@ public void generate() throws Exception {
         mappingConfig.setGenerateRequests(generateRequests);
         mappingConfig.setRequestSuffix(requestSuffix);
         mappingConfig.setResponseProjectionSuffix(responseProjectionSuffix);
+        mappingConfig.setParametrizedInputSuffix(parametrizedInputSuffix);
         mappingConfig.setResolverParentInterface(getResolverParentInterface());
         mappingConfig.setQueryResolverParentInterface(getQueryResolverParentInterface());
         mappingConfig.setMutationResolverParentInterface(getMutationResolverParentInterface());
@@ -408,6 +410,17 @@ public void setResponseProjectionSuffix(String responseProjectionSuffix) {
         this.responseProjectionSuffix = responseProjectionSuffix;
     }
 
+    @Input
+    @Optional
+    @Override
+    public String getParametrizedInputSuffix() {
+        return parametrizedInputSuffix;
+    }
+
+    public void setParametrizedInputSuffix(String parametrizedInputSuffix) {
+        this.parametrizedInputSuffix = parametrizedInputSuffix;
+    }
+
     @Nested
     @Optional
     public ParentInterfacesConfig getParentInterfaces() {
diff --git a/plugins/maven/README.md b/plugins/maven/README.md
index e7345fa4d..b58f1da32 100644
--- a/plugins/maven/README.md
+++ b/plugins/maven/README.md
@@ -94,6 +94,7 @@ You can run the plugin manually with `mvn generate-sources`. It will be run auto
 | `generateRequests`                              | Boolean                                            | False                                         | Specifies whether client-side classes should be generated for each query, mutation and subscription. This includes: `Request` class (contains input data) and `ResponseProjection` class (contains response fields). |
 | `requestSuffix`                                 | String                                             | Request                                       | Sets the suffix for `Request` classes. |
 | `responseProjectionSuffix`                      | String                                             | ResponseProjection                            | Sets the suffix for `ResponseProjection` classes. |
+| `parametrizedInputSuffix`                       | String                                             | ParametrizedInput                             | Sets the suffix for `ParametrizedInput` classes. |
 | `parentInterfaces`                              | *See [parentInterfaces](#option-parentinterfaces)* | Empty                                         | Block to define parent interfaces for generated interfaces (query / mutation / subscription / type resolver) |
 
 
diff --git a/plugins/maven/graphql-java-codegen-maven-plugin/src/main/java/io/github/kobylynskyi/graphql/codegen/GraphQLCodegenMojo.java b/plugins/maven/graphql-java-codegen-maven-plugin/src/main/java/io/github/kobylynskyi/graphql/codegen/GraphQLCodegenMojo.java
index 7fec36660..2a2a85566 100644
--- a/plugins/maven/graphql-java-codegen-maven-plugin/src/main/java/io/github/kobylynskyi/graphql/codegen/GraphQLCodegenMojo.java
+++ b/plugins/maven/graphql-java-codegen-maven-plugin/src/main/java/io/github/kobylynskyi/graphql/codegen/GraphQLCodegenMojo.java
@@ -99,6 +99,9 @@ public class GraphQLCodegenMojo extends AbstractMojo implements GraphQLCodegenCo
     @Parameter(defaultValue = MappingConfigConstants.DEFAULT_RESPONSE_PROJECTION_SUFFIX)
     private String responseProjectionSuffix;
 
+    @Parameter(defaultValue = MappingConfigConstants.DEFAULT_PARAMETRIZED_INPUT_SUFIX)
+    private String parametrizedInputSuffix;
+
     @Parameter
     private String jsonConfigurationFile;
 
@@ -138,6 +141,7 @@ public void execute() throws MojoExecutionException {
         mappingConfig.setGenerateRequests(generateRequests);
         mappingConfig.setRequestSuffix(requestSuffix);
         mappingConfig.setResponseProjectionSuffix(responseProjectionSuffix);
+        mappingConfig.setParametrizedInputSuffix(parametrizedInputSuffix);
         mappingConfig.setResolverParentInterface(getResolverParentInterface());
         mappingConfig.setQueryResolverParentInterface(getQueryResolverParentInterface());
         mappingConfig.setMutationResolverParentInterface(getMutationResolverParentInterface());
@@ -409,6 +413,19 @@ public String getResponseProjectionSuffix() {
         return responseProjectionSuffix;
     }
 
+    public void setResponseProjectionSuffix(String responseProjectionSuffix) {
+        this.responseProjectionSuffix = responseProjectionSuffix;
+    }
+
+    @Override
+    public String getParametrizedInputSuffix() {
+        return parametrizedInputSuffix;
+    }
+
+    public void setParametrizedInputSuffix(String parametrizedInputSuffix) {
+        this.parametrizedInputSuffix = parametrizedInputSuffix;
+    }
+
     public ParentInterfacesConfig getParentInterfaces() {
         return parentInterfaces;
     }
@@ -437,10 +454,6 @@ public String getResolverParentInterface() {
         return parentInterfaces.getResolver();
     }
 
-    public void setResponseProjectionSuffix(String responseProjectionSuffix) {
-        this.responseProjectionSuffix = responseProjectionSuffix;
-    }
-
     public String getJsonConfigurationFile() {
         return jsonConfigurationFile;
     }
diff --git a/src/main/java/com/kobylynskyi/graphql/codegen/FreeMarkerTemplatesRegistry.java b/src/main/java/com/kobylynskyi/graphql/codegen/FreeMarkerTemplatesRegistry.java
index 52cff4e04..8a6019a4c 100644
--- a/src/main/java/com/kobylynskyi/graphql/codegen/FreeMarkerTemplatesRegistry.java
+++ b/src/main/java/com/kobylynskyi/graphql/codegen/FreeMarkerTemplatesRegistry.java
@@ -15,6 +15,7 @@ class FreeMarkerTemplatesRegistry {
     static Template requestTemplate;
     static Template interfaceTemplate;
     static Template operationsTemplate;
+    static Template parametrizedInputTemplate;
     static Template responseProjectionTemplate;
 
     static {
@@ -32,6 +33,7 @@ class FreeMarkerTemplatesRegistry {
             requestTemplate = configuration.getTemplate("templates/javaClassGraphqlRequest.ftl");
             interfaceTemplate = configuration.getTemplate("templates/javaClassGraphqlInterface.ftl");
             operationsTemplate = configuration.getTemplate("templates/javaClassGraphqlOperations.ftl");
+            parametrizedInputTemplate = configuration.getTemplate("templates/javaClassGraphqlParametrizedInput.ftl");
             responseProjectionTemplate = configuration.getTemplate("templates/javaClassGraphqlResponseProjection.ftl");
         } catch (IOException e) {
             throw new UnableToLoadFreeMarkerTemplateException(e);
diff --git a/src/main/java/com/kobylynskyi/graphql/codegen/GraphQLCodegen.java b/src/main/java/com/kobylynskyi/graphql/codegen/GraphQLCodegen.java
index 5d24e8f4e..336ad8b42 100644
--- a/src/main/java/com/kobylynskyi/graphql/codegen/GraphQLCodegen.java
+++ b/src/main/java/com/kobylynskyi/graphql/codegen/GraphQLCodegen.java
@@ -6,6 +6,7 @@
 import com.kobylynskyi.graphql.codegen.model.MappingContext;
 import com.kobylynskyi.graphql.codegen.model.definitions.*;
 import com.kobylynskyi.graphql.codegen.supplier.MappingConfigSupplier;
+import com.kobylynskyi.graphql.codegen.utils.Utils;
 import graphql.language.FieldDefinition;
 import graphql.language.ScalarTypeExtensionDefinition;
 import lombok.Getter;
@@ -64,6 +65,9 @@ private void initDefaultValues(MappingConfig mappingConfig) {
         if (mappingConfig.getResponseProjectionSuffix() == null) {
             mappingConfig.setResponseProjectionSuffix(MappingConfigConstants.DEFAULT_RESPONSE_PROJECTION_SUFFIX);
         }
+        if (mappingConfig.getParametrizedInputSuffix() == null) {
+            mappingConfig.setParametrizedInputSuffix(MappingConfigConstants.DEFAULT_PARAMETRIZED_INPUT_SUFIX);
+        }
         if (mappingConfig.getGenerateToString() == null) {
             mappingConfig.setGenerateToString(MappingConfigConstants.DEFAULT_TO_STRING);
         }
@@ -179,6 +183,13 @@ private List<File> generateType(MappingContext mappingContext, ExtendedObjectTyp
         if (Boolean.TRUE.equals(mappingConfig.getGenerateRequests())) {
             Map<String, Object> responseProjDataModel = TypeDefinitionToDataModelMapper.mapResponseProjection(mappingContext, definition);
             generatedFiles.add(GraphQLCodegenFileCreator.generateFile(FreeMarkerTemplatesRegistry.responseProjectionTemplate, responseProjDataModel, outputDir));
+
+            for (ExtendedFieldDefinition fieldDefinition : definition.getFieldDefinitions()) {
+                if (!Utils.isEmpty(fieldDefinition.getInputValueDefinitions())) {
+                    Map<String, Object> fieldProjDataModel = TypeDefinitionToDataModelMapper.mapParametrizedInput(mappingContext, fieldDefinition, definition);
+                    generatedFiles.add(GraphQLCodegenFileCreator.generateFile(FreeMarkerTemplatesRegistry.parametrizedInputTemplate, fieldProjDataModel, outputDir));
+                }
+            }
         }
         return generatedFiles;
     }
diff --git a/src/main/java/com/kobylynskyi/graphql/codegen/mapper/FieldDefinitionToParameterMapper.java b/src/main/java/com/kobylynskyi/graphql/codegen/mapper/FieldDefinitionToParameterMapper.java
index e08998352..0d7ca823f 100644
--- a/src/main/java/com/kobylynskyi/graphql/codegen/mapper/FieldDefinitionToParameterMapper.java
+++ b/src/main/java/com/kobylynskyi/graphql/codegen/mapper/FieldDefinitionToParameterMapper.java
@@ -3,6 +3,7 @@
 import com.kobylynskyi.graphql.codegen.model.MappingContext;
 import com.kobylynskyi.graphql.codegen.model.ParameterDefinition;
 import com.kobylynskyi.graphql.codegen.model.ProjectionParameterDefinition;
+import com.kobylynskyi.graphql.codegen.model.definitions.ExtendedDefinition;
 import com.kobylynskyi.graphql.codegen.model.definitions.ExtendedFieldDefinition;
 import com.kobylynskyi.graphql.codegen.utils.Utils;
 
@@ -38,14 +39,16 @@ public static List<ParameterDefinition> mapFields(MappingContext mappingContext,
     /**
      * Map field definition to a Freemarker-understandable data model type
      *
-     * @param mappingContext   Global mapping context
-     * @param fieldDefinitions List of GraphQL field definitions
+     * @param mappingContext       Global mapping context
+     * @param fieldDefinitions     List of GraphQL field definitions
+     * @param parentTypeDefinition Parent GraphQL type definition
      * @return Freemarker data model of the GraphQL field definition
      */
     public static List<ProjectionParameterDefinition> mapProjectionFields(MappingContext mappingContext,
-                                                                          List<ExtendedFieldDefinition> fieldDefinitions) {
+                                                                          List<ExtendedFieldDefinition> fieldDefinitions,
+                                                                          ExtendedDefinition<?, ?> parentTypeDefinition) {
         return fieldDefinitions.stream()
-                .map(fieldDef -> mapProjectionField(mappingContext, fieldDef))
+                .map(fieldDef -> mapProjectionField(mappingContext, fieldDef, parentTypeDefinition))
                 .collect(toList());
     }
 
@@ -73,16 +76,22 @@ private static ParameterDefinition mapField(MappingContext mappingContext, Exten
      *
      * @param mappingContext Global mapping context
      * @param fieldDef       GraphQL field definition
+     * @param parentTypeDef  GraphQL definition which is a parent to provided field definition
      * @return Freemarker-understandable format of parameter (field)
      */
     private static ProjectionParameterDefinition mapProjectionField(MappingContext mappingContext,
-                                                                    ExtendedFieldDefinition fieldDef) {
+                                                                    ExtendedFieldDefinition fieldDef,
+                                                                    ExtendedDefinition<?, ?> parentTypeDef) {
         ProjectionParameterDefinition parameter = new ProjectionParameterDefinition();
         parameter.setName(MapperUtils.capitalizeIfRestricted(fieldDef.getName()));
         String nestedType = getNestedTypeName(fieldDef.getType());
         if (mappingContext.getTypeNames().contains(nestedType)) {
             parameter.setType(nestedType + mappingContext.getResponseProjectionSuffix());
         }
+        if (!Utils.isEmpty(fieldDef.getInputValueDefinitions())) {
+            parameter.setParametrizedInputClassName(
+                    MapperUtils.getParametrizedInputClassName(mappingContext, fieldDef, parentTypeDef));
+        }
         parameter.setDeprecated(fieldDef.isDeprecated());
         return parameter;
     }
diff --git a/src/main/java/com/kobylynskyi/graphql/codegen/mapper/MapperUtils.java b/src/main/java/com/kobylynskyi/graphql/codegen/mapper/MapperUtils.java
index 85128ec13..68c2a65aa 100644
--- a/src/main/java/com/kobylynskyi/graphql/codegen/mapper/MapperUtils.java
+++ b/src/main/java/com/kobylynskyi/graphql/codegen/mapper/MapperUtils.java
@@ -68,6 +68,22 @@ static String getClassNameWithPrefixAndSuffix(MappingContext mappingContext, Str
         return classNameBuilder.toString();
     }
 
+    /**
+     * Generates a class name for ParametrizedInput
+     *
+     * @param mappingContext       Global mapping context
+     * @param fieldDefinition      GraphQL field definition for a field that has parametrized input
+     * @param parentTypeDefinition GraphQL definition which is a parent for fieldDefinition
+     * @return Class name of parametrized input
+     */
+    static String getParametrizedInputClassName(MappingContext mappingContext,
+                                                ExtendedFieldDefinition fieldDefinition,
+                                                ExtendedDefinition<?, ?> parentTypeDefinition) {
+        return Utils.capitalize(parentTypeDefinition.getName()) +
+                Utils.capitalize(fieldDefinition.getName()) +
+                mappingContext.getParametrizedInputSuffix();
+    }
+
     /**
      * Get java package name for api class.
      *
diff --git a/src/main/java/com/kobylynskyi/graphql/codegen/mapper/TypeDefinitionToDataModelMapper.java b/src/main/java/com/kobylynskyi/graphql/codegen/mapper/TypeDefinitionToDataModelMapper.java
index b68ac2498..1a810cebe 100644
--- a/src/main/java/com/kobylynskyi/graphql/codegen/mapper/TypeDefinitionToDataModelMapper.java
+++ b/src/main/java/com/kobylynskyi/graphql/codegen/mapper/TypeDefinitionToDataModelMapper.java
@@ -4,6 +4,7 @@
 import com.kobylynskyi.graphql.codegen.model.ParameterDefinition;
 import com.kobylynskyi.graphql.codegen.model.ProjectionParameterDefinition;
 import com.kobylynskyi.graphql.codegen.model.definitions.ExtendedDocument;
+import com.kobylynskyi.graphql.codegen.model.definitions.ExtendedFieldDefinition;
 import com.kobylynskyi.graphql.codegen.model.definitions.ExtendedInterfaceTypeDefinition;
 import com.kobylynskyi.graphql.codegen.model.definitions.ExtendedObjectTypeDefinition;
 import com.kobylynskyi.graphql.codegen.model.definitions.ExtendedUnionTypeDefinition;
@@ -68,6 +69,31 @@ public static Map<String, Object> mapResponseProjection(MappingContext mappingCo
         return dataModel;
     }
 
+    /**
+     * Map field definition to a Freemarker data model of Parametrized Input.
+     *
+     * @param mappingContext       Global mapping context
+     * @param fieldDefinition      GraphQL field definition
+     * @param parentTypeDefinition GraphQL parent type definition
+     * @return Freemarker data model of the GraphQL Parametrized Input
+     */
+    public static Map<String, Object> mapParametrizedInput(MappingContext mappingContext,
+                                                           ExtendedFieldDefinition fieldDefinition,
+                                                           ExtendedObjectTypeDefinition parentTypeDefinition) {
+        Map<String, Object> dataModel = new HashMap<>();
+        // ParametrizedInput classes are sharing the package with the model classes, so no imports are needed
+        dataModel.put(PACKAGE, MapperUtils.getModelPackageName(mappingContext));
+        dataModel.put(CLASS_NAME, MapperUtils.getParametrizedInputClassName(mappingContext, fieldDefinition, parentTypeDefinition));
+        dataModel.put(JAVA_DOC, Collections.singletonList(String.format("Parametrized input for field %s in type %s",
+                fieldDefinition.getName(), parentTypeDefinition.getName())));
+        dataModel.put(FIELDS, InputValueDefinitionToParameterMapper.map(
+                mappingContext, fieldDefinition.getInputValueDefinitions(), parentTypeDefinition.getName()));
+        dataModel.put(BUILDER, mappingContext.getGenerateBuilder());
+        dataModel.put(EQUALS_AND_HASH_CODE, mappingContext.getGenerateEqualsAndHashCode());
+        // dataModel.put(TO_STRING, mappingConfig.getGenerateToString()); always generated for serialization purposes
+        return dataModel;
+    }
+
     /**
      * Get merged attributes from the type and attributes from the interface.
      *
@@ -124,11 +150,11 @@ private static Collection<ProjectionParameterDefinition> getProjectionFields(Map
         Map<String, ProjectionParameterDefinition> allParameters = new LinkedHashMap<>();
 
         // includes parameters from the base definition and extensions
-        FieldDefinitionToParameterMapper.mapProjectionFields(mappingContext, typeDefinition.getFieldDefinitions())
+        FieldDefinitionToParameterMapper.mapProjectionFields(mappingContext, typeDefinition.getFieldDefinitions(), typeDefinition)
                 .forEach(p -> allParameters.put(p.getName(), p));
         // includes parameters from the interface
         getInterfacesOfType(typeDefinition, mappingContext.getDocument()).stream()
-                .map(i -> FieldDefinitionToParameterMapper.mapProjectionFields(mappingContext, i.getFieldDefinitions()))
+                .map(i -> FieldDefinitionToParameterMapper.mapProjectionFields(mappingContext, i.getFieldDefinitions(), i))
                 .flatMap(Collection::stream)
                 .filter(paramDef -> !allParameters.containsKey(paramDef.getName()))
                 .forEach(paramDef -> allParameters.put(paramDef.getName(), paramDef));
diff --git a/src/main/java/com/kobylynskyi/graphql/codegen/model/GraphQLCodegenConfiguration.java b/src/main/java/com/kobylynskyi/graphql/codegen/model/GraphQLCodegenConfiguration.java
index 7dbd1607c..042195902 100644
--- a/src/main/java/com/kobylynskyi/graphql/codegen/model/GraphQLCodegenConfiguration.java
+++ b/src/main/java/com/kobylynskyi/graphql/codegen/model/GraphQLCodegenConfiguration.java
@@ -192,6 +192,13 @@ public interface GraphQLCodegenConfiguration {
      */
     String getResponseProjectionSuffix();
 
+    /**
+     * The suffix for `ParametrizedInput` classes.
+     *
+     * @return The suffix for `ParametrizedInput` classes.
+     */
+    String getParametrizedInputSuffix();
+
     /**
      * Interface that will be added as "extend" to all generated api Query interfaces.
      *
diff --git a/src/main/java/com/kobylynskyi/graphql/codegen/model/MappingConfig.java b/src/main/java/com/kobylynskyi/graphql/codegen/model/MappingConfig.java
index c15269aa7..67e67c9de 100644
--- a/src/main/java/com/kobylynskyi/graphql/codegen/model/MappingConfig.java
+++ b/src/main/java/com/kobylynskyi/graphql/codegen/model/MappingConfig.java
@@ -44,6 +44,7 @@ public class MappingConfig implements GraphQLCodegenConfiguration, Combinable<Ma
     private Boolean generateRequests;
     private String requestSuffix;
     private String responseProjectionSuffix;
+    private String parametrizedInputSuffix;
 
     @Override
     public void combine(MappingConfig source) {
@@ -92,6 +93,7 @@ public void combine(MappingConfig source) {
         this.generateRequests = source.generateRequests != null ? source.generateRequests : this.generateRequests;
         this.requestSuffix = source.requestSuffix != null ? source.requestSuffix : this.requestSuffix;
         this.responseProjectionSuffix = source.responseProjectionSuffix != null ? source.responseProjectionSuffix : this.responseProjectionSuffix;
+        this.parametrizedInputSuffix = source.parametrizedInputSuffix != null ? source.parametrizedInputSuffix : this.parametrizedInputSuffix;
     }
 
     /**
diff --git a/src/main/java/com/kobylynskyi/graphql/codegen/model/MappingConfigConstants.java b/src/main/java/com/kobylynskyi/graphql/codegen/model/MappingConfigConstants.java
index 5b512abbe..3e47b1114 100644
--- a/src/main/java/com/kobylynskyi/graphql/codegen/model/MappingConfigConstants.java
+++ b/src/main/java/com/kobylynskyi/graphql/codegen/model/MappingConfigConstants.java
@@ -25,4 +25,5 @@ public class MappingConfigConstants {
     public static final String DEFAULT_GENERATE_REQUESTS_STRING = "false";
     public static final String DEFAULT_REQUEST_SUFFIX = "Request";
     public static final String DEFAULT_RESPONSE_PROJECTION_SUFFIX = "ResponseProjection";
+    public static final String DEFAULT_PARAMETRIZED_INPUT_SUFIX = "ParametrizedInput";
 }
diff --git a/src/main/java/com/kobylynskyi/graphql/codegen/model/MappingContext.java b/src/main/java/com/kobylynskyi/graphql/codegen/model/MappingContext.java
index f9719b80f..f5bfdf3b4 100644
--- a/src/main/java/com/kobylynskyi/graphql/codegen/model/MappingContext.java
+++ b/src/main/java/com/kobylynskyi/graphql/codegen/model/MappingContext.java
@@ -124,6 +124,11 @@ public String getResponseProjectionSuffix() {
         return config.getResponseProjectionSuffix();
     }
 
+    @Override
+    public String getParametrizedInputSuffix() {
+        return config.getParametrizedInputSuffix();
+    }
+
     @Override
     public String getQueryResolverParentInterface() {
         return config.getQueryResolverParentInterface();
diff --git a/src/main/java/com/kobylynskyi/graphql/codegen/model/ProjectionParameterDefinition.java b/src/main/java/com/kobylynskyi/graphql/codegen/model/ProjectionParameterDefinition.java
index 23fd38f9c..acf068ab5 100644
--- a/src/main/java/com/kobylynskyi/graphql/codegen/model/ProjectionParameterDefinition.java
+++ b/src/main/java/com/kobylynskyi/graphql/codegen/model/ProjectionParameterDefinition.java
@@ -17,5 +17,6 @@ public class ProjectionParameterDefinition {
     private String type;
     private String name;
     private boolean deprecated;
+    private String parametrizedInputClassName;
 
 }
diff --git a/src/main/java/com/kobylynskyi/graphql/codegen/model/graphql/GraphQLParametrizedInput.java b/src/main/java/com/kobylynskyi/graphql/codegen/model/graphql/GraphQLParametrizedInput.java
new file mode 100644
index 000000000..aca3d7992
--- /dev/null
+++ b/src/main/java/com/kobylynskyi/graphql/codegen/model/graphql/GraphQLParametrizedInput.java
@@ -0,0 +1,8 @@
+package com.kobylynskyi.graphql.codegen.model.graphql;
+
+/**
+ * The implementation class should contain the input values of the field definition.
+ */
+public interface GraphQLParametrizedInput {
+
+}
diff --git a/src/main/java/com/kobylynskyi/graphql/codegen/model/graphql/GraphQLResponseProjection.java b/src/main/java/com/kobylynskyi/graphql/codegen/model/graphql/GraphQLResponseProjection.java
index dc9338a1b..307274618 100644
--- a/src/main/java/com/kobylynskyi/graphql/codegen/model/graphql/GraphQLResponseProjection.java
+++ b/src/main/java/com/kobylynskyi/graphql/codegen/model/graphql/GraphQLResponseProjection.java
@@ -1,9 +1,35 @@
 package com.kobylynskyi.graphql.codegen.model.graphql;
 
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.StringJoiner;
+
 /**
  * The implementation class should basically contain the fields of the particular type which
  * should be returned back to the client.
  */
-public interface GraphQLResponseProjection {
+public abstract class GraphQLResponseProjection {
+
+    protected final Map<String, Object> fields = new LinkedHashMap<>();
+    protected final Map<String, GraphQLParametrizedInput> parametrizedInputs = new LinkedHashMap<>();
+
+    @Override
+    public String toString() {
+        if (fields.isEmpty()) {
+            return "";
+        }
+        StringJoiner joiner = new StringJoiner(" ", "{ ", " }");
+        for (Map.Entry<String, Object> property : fields.entrySet()) {
+            joiner.add(property.getKey());
+            GraphQLParametrizedInput parametrizedInput = parametrizedInputs.get(property.getKey());
+            if (parametrizedInput != null) {
+                joiner.add(parametrizedInput.toString());
+            }
+            if (property.getValue() != null) {
+                joiner.add(" ").add(property.getValue().toString());
+            }
+        }
+        return joiner.toString();
+    }
 
 }
diff --git a/src/main/resources/templates/javaClassGraphqlParametrizedInput.ftl b/src/main/resources/templates/javaClassGraphqlParametrizedInput.ftl
new file mode 100644
index 000000000..7de86e252
--- /dev/null
+++ b/src/main/resources/templates/javaClassGraphqlParametrizedInput.ftl
@@ -0,0 +1,96 @@
+<#if package?has_content>
+package ${package};
+
+</#if>
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLParametrizedInput;
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLRequestSerializer;
+import java.util.StringJoiner;
+<#if equalsAndHashCode>
+import java.util.Objects;
+</#if>
+
+<#if javaDoc?has_content>
+/**
+<#list javaDoc as javaDocLine>
+ * ${javaDocLine}
+</#list>
+ */
+</#if>
+public class ${className} implements GraphQLParametrizedInput {
+
+<#list fields as field>
+<#if field.deprecated>
+    @Deprecated
+</#if>
+<#list field.annotations as annotation>
+    @${annotation}
+</#list>
+    private ${field.type} ${field.name}<#if field.defaultValue?has_content> = ${field.defaultValue}</#if>;
+</#list>
+
+    public ${className}() {
+    }
+
+<#if fields?has_content>
+    public ${className}(<#list fields as field>${field.type} ${field.name}<#if field_has_next>, </#if></#list>) {
+<#list fields as field>
+        this.${field.name} = ${field.name};
+</#list>
+    }
+</#if>
+
+<#list fields as field>
+<#if field.javaDoc?has_content>
+    /**
+<#list field.javaDoc as javaDocLine>
+     * ${javaDocLine}
+</#list>
+     */
+</#if>
+<#if field.deprecated>
+    @Deprecated
+</#if>
+    public ${className} ${field.name}(${field.type} ${field.name}) {
+        this.${field.name} = ${field.name};
+        return this;
+    }
+
+</#list>
+<#if equalsAndHashCode>
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final ${className} that = (${className}) obj;
+        return <#list fields as field>Objects.equals(${field.name}, that.${field.name})<#if field_has_next>
+            && </#if></#list>;
+    }
+
+    @Override
+    public int hashCode() {
+<#if fields?has_content>
+        return Objects.hash(<#list fields as field>${field.name}<#if field_has_next>, </#if></#list>);
+<#else>
+        return 0;
+</#if>
+    }
+</#if>
+
+    @Override
+    public String toString() {
+        StringJoiner joiner = new StringJoiner(", ", "(", ")");
+<#if fields?has_content>
+<#list fields as field>
+        if (${field.name} != null) {
+            joiner.add("${field.name}: " + GraphQLRequestSerializer.getEntry(${field.name}));
+        }
+</#list>
+</#if>
+        return joiner.toString();
+    }
+
+}
diff --git a/src/main/resources/templates/javaClassGraphqlResponseProjection.ftl b/src/main/resources/templates/javaClassGraphqlResponseProjection.ftl
index 87388b85f..792b43e2b 100644
--- a/src/main/resources/templates/javaClassGraphqlResponseProjection.ftl
+++ b/src/main/resources/templates/javaClassGraphqlResponseProjection.ftl
@@ -3,10 +3,9 @@ package ${package};
 
 </#if>
 import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLResponseProjection;
-import java.util.LinkedHashMap;
-import java.util.Map;
+<#if equalsAndHashCode>
 import java.util.Objects;
-import java.util.StringJoiner;
+</#if>
 
 <#if javaDoc?has_content>
 /**
@@ -15,9 +14,7 @@ import java.util.StringJoiner;
 </#list>
  */
 </#if>
-public class ${className} implements GraphQLResponseProjection {
-
-    private Map<String, Object> fields = new LinkedHashMap<>();
+public class ${className} extends GraphQLResponseProjection {
 
     public ${className}() {
     }
@@ -38,6 +35,13 @@ public class ${className} implements GraphQLResponseProjection {
         return this;
     }
 
+<#if field.parametrizedInputClassName?has_content>
+    public ${className} ${field.name}(${field.parametrizedInputClassName} input<#if field.type?has_content>, ${field.type} subProjection</#if>) {
+        parametrizedInputs.put("${field.name}", input);
+        return ${field.name}(<#if field.type?has_content>subProjection</#if>);
+    }
+
+</#if>
 </#list>
 <#if equalsAndHashCode>
     @Override
@@ -49,27 +53,13 @@ public class ${className} implements GraphQLResponseProjection {
             return false;
         }
         final ${className} that = (${className}) obj;
-        return Objects.equals(fields, that.fields);
+        return Objects.equals(fields, that.fields) && Objects.equals(parametrizedInputs, that.parametrizedInputs);
     }
 
     @Override
     public int hashCode() {
-        return Objects.hash(fields);
+        return Objects.hash(fields, parametrizedInputs);
     }
 </#if>
 
-    @Override
-    public String toString() {
-        if (fields.isEmpty()) {
-            return "";
-        }
-        StringJoiner joiner = new StringJoiner(" ", "{ ", " }");
-        for (Map.Entry<String, Object> property : fields.entrySet()) {
-            joiner.add(property.getKey());
-            if (property.getValue() != null) {
-                joiner.add(" ").add(property.getValue().toString());
-            }
-        }
-        return joiner.toString();
-    }
 }
diff --git a/src/test/java/com/kobylynskyi/graphql/codegen/GraphQLCodegenRequestTest.java b/src/test/java/com/kobylynskyi/graphql/codegen/GraphQLCodegenRequestTest.java
index 4918cf108..181749ab3 100644
--- a/src/test/java/com/kobylynskyi/graphql/codegen/GraphQLCodegenRequestTest.java
+++ b/src/test/java/com/kobylynskyi/graphql/codegen/GraphQLCodegenRequestTest.java
@@ -27,6 +27,7 @@ void init() {
         mappingConfig.setResponseProjectionSuffix("ResponseProjection");
         mappingConfig.setRequestSuffix("Request");
         mappingConfig.setGenerateRequests(true);
+        mappingConfig.setGenerateEqualsAndHashCode(true);
         mappingConfig.setGenerateToString(false); // should be overridden to true
         mappingConfig.setGenerateApis(false);
     }
@@ -47,6 +48,10 @@ void generate_RequestAndResponseProjections() throws Exception {
                 getFileByName(files, "EventResponseProjection.java"));
         assertSameTrimmedContent(new File("src/test/resources/expected-classes/request/EventPropertyResponseProjection.java.txt"),
                 getFileByName(files, "EventPropertyResponseProjection.java"));
+        assertSameTrimmedContent(new File("src/test/resources/expected-classes/request/EventPropertyParentParametrizedInput.java.txt"),
+                getFileByName(files, "EventPropertyParentParametrizedInput.java"));
+        assertSameTrimmedContent(new File("src/test/resources/expected-classes/request/EventPropertyChildParametrizedInput.java.txt"),
+                getFileByName(files, "EventPropertyChildParametrizedInput.java"));
         assertSameTrimmedContent(new File("src/test/resources/expected-classes/request/EventsByCategoryAndStatusQueryRequest.java.txt"),
                 getFileByName(files, "EventsByCategoryAndStatusQueryRequest.java"));
         assertSameTrimmedContent(new File("src/test/resources/expected-classes/request/VersionQueryRequest.java.txt"),
@@ -67,6 +72,8 @@ void generate_WithModelSuffix() throws Exception {
                 getFileByName(files, "EventStatusTO.java"));
         assertSameTrimmedContent(new File("src/test/resources/expected-classes/request/EventsByCategoryAndStatusQueryRequest_withModelSuffix.java.txt"),
                 getFileByName(files, "EventsByCategoryAndStatusQueryRequest.java"));
+        assertSameTrimmedContent(new File("src/test/resources/expected-classes/request/EventPropertyParentParametrizedInput_withModelSuffix.java.txt"),
+                getFileByName(files, "EventPropertyParentParametrizedInput.java"));
     }
 
     @Test
diff --git a/src/test/java/com/kobylynskyi/graphql/codegen/GraphQLCodegenTest.java b/src/test/java/com/kobylynskyi/graphql/codegen/GraphQLCodegenTest.java
index 2938fc9d1..a9446febb 100644
--- a/src/test/java/com/kobylynskyi/graphql/codegen/GraphQLCodegenTest.java
+++ b/src/test/java/com/kobylynskyi/graphql/codegen/GraphQLCodegenTest.java
@@ -35,12 +35,13 @@ class GraphQLCodegenTest {
     void init() {
         mappingConfig = new MappingConfig();
         mappingConfig.setPackageName("com.kobylynskyi.graphql.test1");
+        mappingConfig.setGenerateParameterizedFieldsResolvers(false);
         generator = new GraphQLCodegen(singletonList("src/test/resources/schemas/test.graphqls"),
                 outputBuildDir, mappingConfig);
     }
 
     @AfterEach
-    void cleanup() throws IOException {
+    void cleanup() {
         Utils.deleteDir(new File("build/generated"));
     }
 
diff --git a/src/test/java/com/kobylynskyi/graphql/codegen/model/MappingConfigTest.java b/src/test/java/com/kobylynskyi/graphql/codegen/model/MappingConfigTest.java
index d23dfa723..d0f65968b 100644
--- a/src/test/java/com/kobylynskyi/graphql/codegen/model/MappingConfigTest.java
+++ b/src/test/java/com/kobylynskyi/graphql/codegen/model/MappingConfigTest.java
@@ -80,6 +80,7 @@ void combineCustomWithDefault() {
         assertEquals("6", mappingConfig.getRequestSuffix());
         assertEquals("7", mappingConfig.getResponseProjectionSuffix());
         assertFalse(mappingConfig.getGenerateRequests());
+        assertEquals("9", mappingConfig.getParametrizedInputSuffix());
     }
 
     @Test
@@ -110,6 +111,7 @@ void combineCustomWithCustom() {
         assertEquals("66", mappingConfig.getRequestSuffix());
         assertEquals("77", mappingConfig.getResponseProjectionSuffix());
         assertTrue(mappingConfig.getGenerateRequests());
+        assertEquals("99", mappingConfig.getParametrizedInputSuffix());
     }
 
     private static Map<String, String> hashMap(AbstractMap.SimpleEntry<String, String>... entries) {
@@ -140,6 +142,7 @@ private static MappingConfig buildMappingConfig() {
         config.setRequestSuffix("6");
         config.setResponseProjectionSuffix("7");
         config.setGenerateRequests(false);
+        config.setParametrizedInputSuffix("9");
         return config;
     }
 
@@ -166,6 +169,7 @@ private static MappingConfig buildMappingConfig2() {
         config.setRequestSuffix("66");
         config.setResponseProjectionSuffix("77");
         config.setGenerateRequests(true);
+        config.setParametrizedInputSuffix("99");
         return config;
     }
 
diff --git a/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/GraphQLRequestSerializerTest.java b/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/GraphQLRequestSerializerTest.java
index 52b01d5b7..b2554f68d 100644
--- a/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/GraphQLRequestSerializerTest.java
+++ b/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/GraphQLRequestSerializerTest.java
@@ -58,6 +58,42 @@ void serialize_withResponseProjection() {
                 "}"), serializedQuery);
     }
 
+    @Test
+    void serialize_withResponseProjectionAndParametrizedInput() {
+        EventsByCategoryAndStatusQueryRequest request = new EventsByCategoryAndStatusQueryRequest.Builder()
+                .setCategoryId("categoryIdValue1")
+                .setStatus(Status.OPEN)
+                .build();
+        GraphQLRequest graphQLRequest = new GraphQLRequest(request,
+                new EventResponseProjection()
+                        .id()
+                        .active()
+                        .properties(new EventPropertyResponseProjection()
+                                .floatVal()
+                                .child(new EventPropertyChildParametrizedInput()
+                                                .last(-10)
+                                                .first(+10),
+                                        new EventPropertyResponseProjection()
+                                                .intVal()
+                                                .parent(new EventPropertyParentParametrizedInput()
+                                                                .withStatus(Status.OPEN),
+                                                        new EventResponseProjection()
+                                                                .id()))
+                                .booleanVal())
+                        .status()
+        );
+        String serializedQuery = graphQLRequest.toString().replaceAll(" +", " ").trim();
+        assertEquals(expected("query { " +
+                "eventsByCategoryAndStatus(categoryId: \\\"categoryIdValue1\\\", status: OPEN){ " +
+                "id " +
+                "active " +
+                "properties { " +
+                "floatVal child (first: 10, last: -10) { intVal parent (withStatus: OPEN) { id } } booleanVal } " +
+                "status " +
+                "} " +
+                "}"), serializedQuery);
+    }
+
     @Test
     void serialize_complexRequestWithDefaultData() {
         UpdateIssueMutationRequest requestWithDefaultData = new UpdateIssueMutationRequest();
diff --git a/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/EventPropertyChildParametrizedInput.java b/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/EventPropertyChildParametrizedInput.java
new file mode 100644
index 000000000..b8a4f6f26
--- /dev/null
+++ b/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/EventPropertyChildParametrizedInput.java
@@ -0,0 +1,65 @@
+package com.kobylynskyi.graphql.codegen.model.graphql.data;
+
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLParametrizedInput;
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLRequestSerializer;
+
+import java.util.Objects;
+import java.util.StringJoiner;
+
+/**
+ * Parametrized input for field child in type EventProperty
+ */
+public class EventPropertyChildParametrizedInput implements GraphQLParametrizedInput {
+
+    private Integer first;
+    private Integer last;
+
+    public EventPropertyChildParametrizedInput() {
+    }
+
+    public EventPropertyChildParametrizedInput(Integer first, Integer last) {
+        this.first = first;
+        this.last = last;
+    }
+
+    public EventPropertyChildParametrizedInput first(Integer first) {
+        this.first = first;
+        return this;
+    }
+
+    public EventPropertyChildParametrizedInput last(Integer last) {
+        this.last = last;
+        return this;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final EventPropertyChildParametrizedInput that = (EventPropertyChildParametrizedInput) obj;
+        return Objects.equals(first, that.first)
+                && Objects.equals(last, that.last);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(first, last);
+    }
+
+    @Override
+    public String toString() {
+        StringJoiner joiner = new StringJoiner(", ", "(", ")");
+        if (first != null) {
+            joiner.add("first: " + GraphQLRequestSerializer.getEntry(first));
+        }
+        if (last != null) {
+            joiner.add("last: " + GraphQLRequestSerializer.getEntry(last));
+        }
+        return joiner.toString();
+    }
+
+}
\ No newline at end of file
diff --git a/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/EventPropertyParentParametrizedInput.java b/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/EventPropertyParentParametrizedInput.java
new file mode 100644
index 000000000..a8aff5798
--- /dev/null
+++ b/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/EventPropertyParentParametrizedInput.java
@@ -0,0 +1,54 @@
+package com.kobylynskyi.graphql.codegen.model.graphql.data;
+
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLParametrizedInput;
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLRequestSerializer;
+
+import java.util.Objects;
+import java.util.StringJoiner;
+
+/**
+ * Parametrized input for field parent in type EventProperty
+ */
+public class EventPropertyParentParametrizedInput implements GraphQLParametrizedInput {
+
+    private Status withStatus;
+
+    public EventPropertyParentParametrizedInput() {
+    }
+
+    public EventPropertyParentParametrizedInput(Status withStatus) {
+        this.withStatus = withStatus;
+    }
+
+    public EventPropertyParentParametrizedInput withStatus(Status withStatus) {
+        this.withStatus = withStatus;
+        return this;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final EventPropertyParentParametrizedInput that = (EventPropertyParentParametrizedInput) obj;
+        return Objects.equals(withStatus, that.withStatus);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(withStatus);
+    }
+
+    @Override
+    public String toString() {
+        StringJoiner joiner = new StringJoiner(", ", "(", ")");
+        if (withStatus != null) {
+            joiner.add("withStatus: " + GraphQLRequestSerializer.getEntry(withStatus));
+        }
+        return joiner.toString();
+    }
+
+}
\ No newline at end of file
diff --git a/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/EventPropertyResponseProjection.java b/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/EventPropertyResponseProjection.java
index e21b8547f..09bb71d8d 100644
--- a/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/EventPropertyResponseProjection.java
+++ b/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/EventPropertyResponseProjection.java
@@ -6,9 +6,10 @@
 import java.util.Map;
 import java.util.StringJoiner;
 
-public class EventPropertyResponseProjection implements GraphQLResponseProjection {
-
-    private Map<String, Object> fields = new LinkedHashMap<>();
+/**
+ * Response projection for EventProperty
+ */
+public class EventPropertyResponseProjection extends GraphQLResponseProjection {
 
     public EventPropertyResponseProjection() {
     }
@@ -38,24 +39,19 @@ public EventPropertyResponseProjection child(EventPropertyResponseProjection sub
         return this;
     }
 
+    public EventPropertyResponseProjection child(EventPropertyChildParametrizedInput input, EventPropertyResponseProjection subProjection) {
+        parametrizedInputs.put("child", input);
+        return child(subProjection);
+    }
+
     public EventPropertyResponseProjection parent(EventResponseProjection subProjection) {
         fields.put("parent", subProjection);
         return this;
     }
 
-
-    @Override
-    public String toString() {
-        if (fields.isEmpty()) {
-            return "";
-        }
-        StringJoiner joiner = new StringJoiner(" ", "{ ", " }");
-        for (Map.Entry<String, Object> property : fields.entrySet()) {
-            joiner.add(property.getKey());
-            if (property.getValue() != null) {
-                joiner.add(" ").add(property.getValue().toString());
-            }
-        }
-        return joiner.toString();
+    public EventPropertyResponseProjection parent(EventPropertyParentParametrizedInput input, EventResponseProjection subProjection) {
+        parametrizedInputs.put("parent", input);
+        return parent(subProjection);
     }
+
 }
\ No newline at end of file
diff --git a/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/EventResponseProjection.java b/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/EventResponseProjection.java
index 636fd7eb2..2fbb332f3 100644
--- a/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/EventResponseProjection.java
+++ b/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/EventResponseProjection.java
@@ -2,11 +2,13 @@
 
 import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLResponseProjection;
 
-import java.util.*;
+import java.util.Map;
+import java.util.StringJoiner;
 
-public class EventResponseProjection implements GraphQLResponseProjection {
-
-    private Map<String, Object> fields = new LinkedHashMap<>();
+/**
+ * Response projection for Event
+ */
+public class EventResponseProjection extends GraphQLResponseProjection {
 
     public EventResponseProjection() {
     }
@@ -51,19 +53,4 @@ public EventResponseProjection rating() {
         return this;
     }
 
-
-    @Override
-    public String toString() {
-        if (fields.isEmpty()) {
-            return "";
-        }
-        StringJoiner joiner = new StringJoiner(" ", "{ ", " }");
-        for (Map.Entry<String, Object> property : fields.entrySet()) {
-            joiner.add(property.getKey());
-            if (property.getValue() != null) {
-                joiner.add(" ").add(property.getValue().toString());
-            }
-        }
-        return joiner.toString();
-    }
 }
\ No newline at end of file
diff --git a/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/IssueResponseProjection.java b/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/IssueResponseProjection.java
index 17acb52da..97505b758 100644
--- a/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/IssueResponseProjection.java
+++ b/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/IssueResponseProjection.java
@@ -2,13 +2,7 @@
 
 import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLResponseProjection;
 
-import java.util.LinkedHashMap;
-import java.util.Map;
-import java.util.StringJoiner;
-
-public class IssueResponseProjection implements GraphQLResponseProjection {
-
-    private Map<String, Object> fields = new LinkedHashMap<>();
+public class IssueResponseProjection extends GraphQLResponseProjection {
 
     public IssueResponseProjection() {
     }
@@ -20,18 +14,4 @@ public IssueResponseProjection activeLockReason() {
 
     // REST OF THE STUFF WAS REMOVED
 
-    @Override
-    public String toString() {
-        if (fields.isEmpty()) {
-            return "";
-        }
-        StringJoiner joiner = new StringJoiner(" ", "{ ", " }");
-        for (Map.Entry<String, Object> property : fields.entrySet()) {
-            joiner.add(property.getKey());
-            if (property.getValue() != null) {
-                joiner.add(" ").add(property.getValue().toString());
-            }
-        }
-        return joiner.toString();
-    }
 }
diff --git a/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/UpdateIssuePayloadResponseProjection.java b/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/UpdateIssuePayloadResponseProjection.java
index 0d97644e7..e666a45ca 100644
--- a/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/UpdateIssuePayloadResponseProjection.java
+++ b/src/test/java/com/kobylynskyi/graphql/codegen/model/graphql/data/UpdateIssuePayloadResponseProjection.java
@@ -2,11 +2,7 @@
 
 import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLResponseProjection;
 
-import java.util.*;
-
-public class UpdateIssuePayloadResponseProjection implements GraphQLResponseProjection {
-
-    private Map<String, Object> fields = new LinkedHashMap<>();
+public class UpdateIssuePayloadResponseProjection extends GraphQLResponseProjection {
 
     public UpdateIssuePayloadResponseProjection() {
     }
@@ -21,19 +17,4 @@ public UpdateIssuePayloadResponseProjection issue(IssueResponseProjection subPro
         return this;
     }
 
-
-    @Override
-    public String toString() {
-        if (fields.isEmpty()) {
-            return "";
-        }
-        StringJoiner joiner = new StringJoiner(" ", "{ ", " }");
-        for (Map.Entry<String, Object> property : fields.entrySet()) {
-            joiner.add(property.getKey());
-            if (property.getValue() != null) {
-                joiner.add(" ").add(property.getValue().toString());
-            }
-        }
-        return joiner.toString();
-    }
 }
diff --git a/src/test/resources/expected-classes/extend/request/AssetResponseProjection.java.txt b/src/test/resources/expected-classes/extend/request/AssetResponseProjection.java.txt
index 3cb872d93..3d0c2df50 100644
--- a/src/test/resources/expected-classes/extend/request/AssetResponseProjection.java.txt
+++ b/src/test/resources/expected-classes/extend/request/AssetResponseProjection.java.txt
@@ -1,15 +1,9 @@
 import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLResponseProjection;
-import java.util.LinkedHashMap;
-import java.util.Map;
-import java.util.Objects;
-import java.util.StringJoiner;
 
 /**
  * Response projection for Asset
  */
-public class AssetResponseProjection implements GraphQLResponseProjection {
-
-    private Map<String, Object> fields = new LinkedHashMap<>();
+public class AssetResponseProjection extends GraphQLResponseProjection {
 
     public AssetResponseProjection() {
     }
@@ -35,18 +29,4 @@ public class AssetResponseProjection implements GraphQLResponseProjection {
     }
 
 
-    @Override
-    public String toString() {
-        if (fields.isEmpty()) {
-            return "";
-        }
-        StringJoiner joiner = new StringJoiner(" ", "{ ", " }");
-        for (Map.Entry<String, Object> property : fields.entrySet()) {
-            joiner.add(property.getKey());
-            if (property.getValue() != null) {
-                joiner.add(" ").add(property.getValue().toString());
-            }
-        }
-        return joiner.toString();
-    }
-}
+}
\ No newline at end of file
diff --git a/src/test/resources/expected-classes/extend/request/EventResponseProjection.java.txt b/src/test/resources/expected-classes/extend/request/EventResponseProjection.java.txt
index 372708e04..3eb884298 100644
--- a/src/test/resources/expected-classes/extend/request/EventResponseProjection.java.txt
+++ b/src/test/resources/expected-classes/extend/request/EventResponseProjection.java.txt
@@ -1,15 +1,9 @@
 import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLResponseProjection;
-import java.util.LinkedHashMap;
-import java.util.Map;
-import java.util.Objects;
-import java.util.StringJoiner;
 
 /**
  * Response projection for Event
  */
-public class EventResponseProjection implements GraphQLResponseProjection {
-
-    private Map<String, Object> fields = new LinkedHashMap<>();
+public class EventResponseProjection extends GraphQLResponseProjection {
 
     public EventResponseProjection() {
     }
@@ -40,18 +34,4 @@ public class EventResponseProjection implements GraphQLResponseProjection {
     }
 
 
-    @Override
-    public String toString() {
-        if (fields.isEmpty()) {
-            return "";
-        }
-        StringJoiner joiner = new StringJoiner(" ", "{ ", " }");
-        for (Map.Entry<String, Object> property : fields.entrySet()) {
-            joiner.add(property.getKey());
-            if (property.getValue() != null) {
-                joiner.add(" ").add(property.getValue().toString());
-            }
-        }
-        return joiner.toString();
-    }
 }
\ No newline at end of file
diff --git a/src/test/resources/expected-classes/request/AcceptTopicSuggestionInput.java.txt b/src/test/resources/expected-classes/request/AcceptTopicSuggestionInput.java.txt
index 35a0fd8ee..a2f6f16fb 100644
--- a/src/test/resources/expected-classes/request/AcceptTopicSuggestionInput.java.txt
+++ b/src/test/resources/expected-classes/request/AcceptTopicSuggestionInput.java.txt
@@ -1,6 +1,7 @@
 package com.github.graphql;
 
 import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLRequestSerializer;
+import java.util.Objects;
 import java.util.StringJoiner;
 
 public class AcceptTopicSuggestionInput {
@@ -41,6 +42,24 @@ public class AcceptTopicSuggestionInput {
         this.repositoryId = repositoryId;
     }
 
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final AcceptTopicSuggestionInput that = (AcceptTopicSuggestionInput) obj;
+        return Objects.equals(clientMutationId, that.clientMutationId)
+            && Objects.equals(name, that.name)
+            && Objects.equals(repositoryId, that.repositoryId);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(clientMutationId, name, repositoryId);
+    }
 
     @Override
     public String toString() {
diff --git a/src/test/resources/expected-classes/request/CodeOfConductResponseProjection.java.txt b/src/test/resources/expected-classes/request/CodeOfConductResponseProjection.java.txt
index 74a72ae01..34f7ce851 100644
--- a/src/test/resources/expected-classes/request/CodeOfConductResponseProjection.java.txt
+++ b/src/test/resources/expected-classes/request/CodeOfConductResponseProjection.java.txt
@@ -1,17 +1,12 @@
 package com.github.graphql;
 
 import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLResponseProjection;
-import java.util.LinkedHashMap;
-import java.util.Map;
 import java.util.Objects;
-import java.util.StringJoiner;
 
 /**
  * Response projection for CodeOfConduct
  */
-public class CodeOfConductResponseProjection implements GraphQLResponseProjection {
-
-    private Map<String, Object> fields = new LinkedHashMap<>();
+public class CodeOfConductResponseProjection extends GraphQLResponseProjection {
 
     public CodeOfConductResponseProjection() {
     }
@@ -46,19 +41,21 @@ public class CodeOfConductResponseProjection implements GraphQLResponseProjectio
         return this;
     }
 
-
     @Override
-    public String toString() {
-        if (fields.isEmpty()) {
-            return "";
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
         }
-        StringJoiner joiner = new StringJoiner(" ", "{ ", " }");
-        for (Map.Entry<String, Object> property : fields.entrySet()) {
-            joiner.add(property.getKey());
-            if (property.getValue() != null) {
-                joiner.add(" ").add(property.getValue().toString());
-            }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
         }
-        return joiner.toString();
+        final CodeOfConductResponseProjection that = (CodeOfConductResponseProjection) obj;
+        return Objects.equals(fields, that.fields) && Objects.equals(parametrizedInputs, that.parametrizedInputs);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(fields, parametrizedInputs);
     }
+
 }
\ No newline at end of file
diff --git a/src/test/resources/expected-classes/request/EventPropertyChildParametrizedInput.java.txt b/src/test/resources/expected-classes/request/EventPropertyChildParametrizedInput.java.txt
new file mode 100644
index 000000000..3778d4ea5
--- /dev/null
+++ b/src/test/resources/expected-classes/request/EventPropertyChildParametrizedInput.java.txt
@@ -0,0 +1,64 @@
+package com.github.graphql;
+
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLParametrizedInput;
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLRequestSerializer;
+import java.util.StringJoiner;
+import java.util.Objects;
+
+/**
+ * Parametrized input for field child in type EventProperty
+ */
+public class EventPropertyChildParametrizedInput implements GraphQLParametrizedInput {
+
+    private Integer first;
+    private Integer last;
+
+    public EventPropertyChildParametrizedInput() {
+    }
+
+    public EventPropertyChildParametrizedInput(Integer first, Integer last) {
+        this.first = first;
+        this.last = last;
+    }
+
+    public EventPropertyChildParametrizedInput first(Integer first) {
+        this.first = first;
+        return this;
+    }
+
+    public EventPropertyChildParametrizedInput last(Integer last) {
+        this.last = last;
+        return this;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final EventPropertyChildParametrizedInput that = (EventPropertyChildParametrizedInput) obj;
+        return Objects.equals(first, that.first)
+            && Objects.equals(last, that.last);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(first, last);
+    }
+
+    @Override
+    public String toString() {
+        StringJoiner joiner = new StringJoiner(", ", "(", ")");
+        if (first != null) {
+            joiner.add("first: " + GraphQLRequestSerializer.getEntry(first));
+        }
+        if (last != null) {
+            joiner.add("last: " + GraphQLRequestSerializer.getEntry(last));
+        }
+        return joiner.toString();
+    }
+
+}
\ No newline at end of file
diff --git a/src/test/resources/expected-classes/request/EventPropertyParentParametrizedInput.java.txt b/src/test/resources/expected-classes/request/EventPropertyParentParametrizedInput.java.txt
new file mode 100644
index 000000000..da871e27f
--- /dev/null
+++ b/src/test/resources/expected-classes/request/EventPropertyParentParametrizedInput.java.txt
@@ -0,0 +1,53 @@
+package com.github.graphql;
+
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLParametrizedInput;
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLRequestSerializer;
+import java.util.StringJoiner;
+import java.util.Objects;
+
+/**
+ * Parametrized input for field parent in type EventProperty
+ */
+public class EventPropertyParentParametrizedInput implements GraphQLParametrizedInput {
+
+    private EventStatus withStatus;
+
+    public EventPropertyParentParametrizedInput() {
+    }
+
+    public EventPropertyParentParametrizedInput(EventStatus withStatus) {
+        this.withStatus = withStatus;
+    }
+
+    public EventPropertyParentParametrizedInput withStatus(EventStatus withStatus) {
+        this.withStatus = withStatus;
+        return this;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final EventPropertyParentParametrizedInput that = (EventPropertyParentParametrizedInput) obj;
+        return Objects.equals(withStatus, that.withStatus);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(withStatus);
+    }
+
+    @Override
+    public String toString() {
+        StringJoiner joiner = new StringJoiner(", ", "(", ")");
+        if (withStatus != null) {
+            joiner.add("withStatus: " + GraphQLRequestSerializer.getEntry(withStatus));
+        }
+        return joiner.toString();
+    }
+
+}
\ No newline at end of file
diff --git a/src/test/resources/expected-classes/request/EventPropertyParentParametrizedInput_withModelSuffix.java.txt b/src/test/resources/expected-classes/request/EventPropertyParentParametrizedInput_withModelSuffix.java.txt
new file mode 100644
index 000000000..10ffdd952
--- /dev/null
+++ b/src/test/resources/expected-classes/request/EventPropertyParentParametrizedInput_withModelSuffix.java.txt
@@ -0,0 +1,53 @@
+package com.github.graphql;
+
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLParametrizedInput;
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLRequestSerializer;
+import java.util.StringJoiner;
+import java.util.Objects;
+
+/**
+ * Parametrized input for field parent in type EventProperty
+ */
+public class EventPropertyParentParametrizedInput implements GraphQLParametrizedInput {
+
+    private EventStatusTO withStatus;
+
+    public EventPropertyParentParametrizedInput() {
+    }
+
+    public EventPropertyParentParametrizedInput(EventStatusTO withStatus) {
+        this.withStatus = withStatus;
+    }
+
+    public EventPropertyParentParametrizedInput withStatus(EventStatusTO withStatus) {
+        this.withStatus = withStatus;
+        return this;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final EventPropertyParentParametrizedInput that = (EventPropertyParentParametrizedInput) obj;
+        return Objects.equals(withStatus, that.withStatus);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(withStatus);
+    }
+
+    @Override
+    public String toString() {
+        StringJoiner joiner = new StringJoiner(", ", "(", ")");
+        if (withStatus != null) {
+            joiner.add("withStatus: " + GraphQLRequestSerializer.getEntry(withStatus));
+        }
+        return joiner.toString();
+    }
+
+}
\ No newline at end of file
diff --git a/src/test/resources/expected-classes/request/EventPropertyResponseProjection.java.txt b/src/test/resources/expected-classes/request/EventPropertyResponseProjection.java.txt
index f33fbc8ca..85fa9c7af 100644
--- a/src/test/resources/expected-classes/request/EventPropertyResponseProjection.java.txt
+++ b/src/test/resources/expected-classes/request/EventPropertyResponseProjection.java.txt
@@ -1,17 +1,12 @@
 package com.github.graphql;
 
 import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLResponseProjection;
-import java.util.LinkedHashMap;
-import java.util.Map;
 import java.util.Objects;
-import java.util.StringJoiner;
 
 /**
  * Response projection for EventProperty
  */
-public class EventPropertyResponseProjection implements GraphQLResponseProjection {
-
-    private Map<String, Object> fields = new LinkedHashMap<>();
+public class EventPropertyResponseProjection extends GraphQLResponseProjection {
 
     public EventPropertyResponseProjection() {
     }
@@ -41,24 +36,36 @@ public class EventPropertyResponseProjection implements GraphQLResponseProjectio
         return this;
     }
 
+    public EventPropertyResponseProjection child(EventPropertyChildParametrizedInput input, EventPropertyResponseProjection subProjection) {
+        parametrizedInputs.put("child", input);
+        return child(subProjection);
+    }
+
     public EventPropertyResponseProjection parent(EventResponseProjection subProjection) {
         fields.put("parent", subProjection);
         return this;
     }
 
+    public EventPropertyResponseProjection parent(EventPropertyParentParametrizedInput input, EventResponseProjection subProjection) {
+        parametrizedInputs.put("parent", input);
+        return parent(subProjection);
+    }
 
     @Override
-    public String toString() {
-        if (fields.isEmpty()) {
-            return "";
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
         }
-        StringJoiner joiner = new StringJoiner(" ", "{ ", " }");
-        for (Map.Entry<String, Object> property : fields.entrySet()) {
-            joiner.add(property.getKey());
-            if (property.getValue() != null) {
-                joiner.add(" ").add(property.getValue().toString());
-            }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
         }
-        return joiner.toString();
+        final EventPropertyResponseProjection that = (EventPropertyResponseProjection) obj;
+        return Objects.equals(fields, that.fields) && Objects.equals(parametrizedInputs, that.parametrizedInputs);
     }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(fields, parametrizedInputs);
+    }
+
 }
\ No newline at end of file
diff --git a/src/test/resources/expected-classes/request/EventResponseProjection.java.txt b/src/test/resources/expected-classes/request/EventResponseProjection.java.txt
index 5a4a3e932..024851e32 100644
--- a/src/test/resources/expected-classes/request/EventResponseProjection.java.txt
+++ b/src/test/resources/expected-classes/request/EventResponseProjection.java.txt
@@ -1,17 +1,12 @@
 package com.github.graphql;
 
 import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLResponseProjection;
-import java.util.LinkedHashMap;
-import java.util.Map;
 import java.util.Objects;
-import java.util.StringJoiner;
 
 /**
  * Response projection for Event
  */
-public class EventResponseProjection implements GraphQLResponseProjection {
-
-    private Map<String, Object> fields = new LinkedHashMap<>();
+public class EventResponseProjection extends GraphQLResponseProjection {
 
     public EventResponseProjection() {
     }
@@ -56,19 +51,21 @@ public class EventResponseProjection implements GraphQLResponseProjection {
         return this;
     }
 
-
     @Override
-    public String toString() {
-        if (fields.isEmpty()) {
-            return "";
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
         }
-        StringJoiner joiner = new StringJoiner(" ", "{ ", " }");
-        for (Map.Entry<String, Object> property : fields.entrySet()) {
-            joiner.add(property.getKey());
-            if (property.getValue() != null) {
-                joiner.add(" ").add(property.getValue().toString());
-            }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
         }
-        return joiner.toString();
+        final EventResponseProjection that = (EventResponseProjection) obj;
+        return Objects.equals(fields, that.fields) && Objects.equals(parametrizedInputs, that.parametrizedInputs);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(fields, parametrizedInputs);
     }
+
 }
\ No newline at end of file
diff --git a/src/test/resources/expected-classes/request/EventsByCategoryAndStatusQueryRequest.java.txt b/src/test/resources/expected-classes/request/EventsByCategoryAndStatusQueryRequest.java.txt
index f5934d1c4..b691ca6e6 100644
--- a/src/test/resources/expected-classes/request/EventsByCategoryAndStatusQueryRequest.java.txt
+++ b/src/test/resources/expected-classes/request/EventsByCategoryAndStatusQueryRequest.java.txt
@@ -42,6 +42,24 @@ public class EventsByCategoryAndStatusQueryRequest implements GraphQLOperationRe
         return input;
     }
 
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final EventsByCategoryAndStatusQueryRequest that = (EventsByCategoryAndStatusQueryRequest) obj;
+        return Objects.equals(getOperationType(), that.getOperationType()) &&
+                   Objects.equals(getOperationName(), that.getOperationName()) &&
+                   Objects.equals(input, that.input);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getOperationType(), getOperationName(), input);
+    }
     @Override
     public String toString() {
         return Objects.toString(input);
diff --git a/src/test/resources/expected-classes/request/EventsByCategoryAndStatusQueryRequest_withApiImport.java.txt b/src/test/resources/expected-classes/request/EventsByCategoryAndStatusQueryRequest_withApiImport.java.txt
index f5934d1c4..b691ca6e6 100644
--- a/src/test/resources/expected-classes/request/EventsByCategoryAndStatusQueryRequest_withApiImport.java.txt
+++ b/src/test/resources/expected-classes/request/EventsByCategoryAndStatusQueryRequest_withApiImport.java.txt
@@ -42,6 +42,24 @@ public class EventsByCategoryAndStatusQueryRequest implements GraphQLOperationRe
         return input;
     }
 
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final EventsByCategoryAndStatusQueryRequest that = (EventsByCategoryAndStatusQueryRequest) obj;
+        return Objects.equals(getOperationType(), that.getOperationType()) &&
+                   Objects.equals(getOperationName(), that.getOperationName()) &&
+                   Objects.equals(input, that.input);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getOperationType(), getOperationName(), input);
+    }
     @Override
     public String toString() {
         return Objects.toString(input);
diff --git a/src/test/resources/expected-classes/request/EventsByCategoryAndStatusQueryRequest_withModelSuffix.java.txt b/src/test/resources/expected-classes/request/EventsByCategoryAndStatusQueryRequest_withModelSuffix.java.txt
index 3244382d4..c303a269b 100644
--- a/src/test/resources/expected-classes/request/EventsByCategoryAndStatusQueryRequest_withModelSuffix.java.txt
+++ b/src/test/resources/expected-classes/request/EventsByCategoryAndStatusQueryRequest_withModelSuffix.java.txt
@@ -42,6 +42,24 @@ public class EventsByCategoryAndStatusQueryRequest implements GraphQLOperationRe
         return input;
     }
 
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final EventsByCategoryAndStatusQueryRequest that = (EventsByCategoryAndStatusQueryRequest) obj;
+        return Objects.equals(getOperationType(), that.getOperationType()) &&
+                   Objects.equals(getOperationName(), that.getOperationName()) &&
+                   Objects.equals(input, that.input);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getOperationType(), getOperationName(), input);
+    }
     @Override
     public String toString() {
         return Objects.toString(input);
diff --git a/src/test/resources/expected-classes/request/EventsByIdsQueryRequest.java.txt b/src/test/resources/expected-classes/request/EventsByIdsQueryRequest.java.txt
index d2a2333b6..292a5ed5a 100644
--- a/src/test/resources/expected-classes/request/EventsByIdsQueryRequest.java.txt
+++ b/src/test/resources/expected-classes/request/EventsByIdsQueryRequest.java.txt
@@ -38,6 +38,24 @@ public class EventsByIdsQueryRequest implements GraphQLOperationRequest {
         return input;
     }
 
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final EventsByIdsQueryRequest that = (EventsByIdsQueryRequest) obj;
+        return Objects.equals(getOperationType(), that.getOperationType()) &&
+                   Objects.equals(getOperationName(), that.getOperationName()) &&
+                   Objects.equals(input, that.input);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getOperationType(), getOperationName(), input);
+    }
     @Override
     public String toString() {
         return Objects.toString(input);
diff --git a/src/test/resources/expected-classes/request/ProductsByCategoryIdAndStatusQueryRequest.java.txt b/src/test/resources/expected-classes/request/ProductsByCategoryIdAndStatusQueryRequest.java.txt
index e30b1d5e3..c8c43e44b 100644
--- a/src/test/resources/expected-classes/request/ProductsByCategoryIdAndStatusQueryRequest.java.txt
+++ b/src/test/resources/expected-classes/request/ProductsByCategoryIdAndStatusQueryRequest.java.txt
@@ -39,6 +39,24 @@ public class ProductsByCategoryIdAndStatusQueryRequest implements GraphQLOperati
         return input;
     }
 
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final ProductsByCategoryIdAndStatusQueryRequest that = (ProductsByCategoryIdAndStatusQueryRequest) obj;
+        return Objects.equals(getOperationType(), that.getOperationType()) &&
+                   Objects.equals(getOperationName(), that.getOperationName()) &&
+                   Objects.equals(input, that.input);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getOperationType(), getOperationName(), input);
+    }
     @Override
     public String toString() {
         return Objects.toString(input);
@@ -71,4 +89,4 @@ public class ProductsByCategoryIdAndStatusQueryRequest implements GraphQLOperati
         }
 
     }
-}
+}
\ No newline at end of file
diff --git a/src/test/resources/expected-classes/request/ProductsByIdsQueryRequest.java.txt b/src/test/resources/expected-classes/request/ProductsByIdsQueryRequest.java.txt
index 647dd9eae..cf1291133 100644
--- a/src/test/resources/expected-classes/request/ProductsByIdsQueryRequest.java.txt
+++ b/src/test/resources/expected-classes/request/ProductsByIdsQueryRequest.java.txt
@@ -35,6 +35,24 @@ public class ProductsByIdsQueryRequest implements GraphQLOperationRequest {
         return input;
     }
 
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final ProductsByIdsQueryRequest that = (ProductsByIdsQueryRequest) obj;
+        return Objects.equals(getOperationType(), that.getOperationType()) &&
+                   Objects.equals(getOperationName(), that.getOperationName()) &&
+                   Objects.equals(input, that.input);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getOperationType(), getOperationName(), input);
+    }
     @Override
     public String toString() {
         return Objects.toString(input);
@@ -60,4 +78,4 @@ public class ProductsByIdsQueryRequest implements GraphQLOperationRequest {
         }
 
     }
-}
+}
\ No newline at end of file
diff --git a/src/test/resources/expected-classes/request/UpdateRepositoryMutationRequest.java.txt b/src/test/resources/expected-classes/request/UpdateRepositoryMutationRequest.java.txt
index 11fa092df..809e1d3ec 100644
--- a/src/test/resources/expected-classes/request/UpdateRepositoryMutationRequest.java.txt
+++ b/src/test/resources/expected-classes/request/UpdateRepositoryMutationRequest.java.txt
@@ -35,6 +35,24 @@ public class UpdateRepositoryMutationRequest implements GraphQLOperationRequest
         return input;
     }
 
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final UpdateRepositoryMutationRequest that = (UpdateRepositoryMutationRequest) obj;
+        return Objects.equals(getOperationType(), that.getOperationType()) &&
+                   Objects.equals(getOperationName(), that.getOperationName()) &&
+                   Objects.equals(input, that.input);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getOperationType(), getOperationName(), input);
+    }
     @Override
     public String toString() {
         return Objects.toString(input);
diff --git a/src/test/resources/expected-classes/request/VersionQueryRequest.java.txt b/src/test/resources/expected-classes/request/VersionQueryRequest.java.txt
index c8f9b4fbc..6a803e556 100644
--- a/src/test/resources/expected-classes/request/VersionQueryRequest.java.txt
+++ b/src/test/resources/expected-classes/request/VersionQueryRequest.java.txt
@@ -34,6 +34,24 @@ public class VersionQueryRequest implements GraphQLOperationRequest {
         return input;
     }
 
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        final VersionQueryRequest that = (VersionQueryRequest) obj;
+        return Objects.equals(getOperationType(), that.getOperationType()) &&
+                   Objects.equals(getOperationName(), that.getOperationName()) &&
+                   Objects.equals(input, that.input);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getOperationType(), getOperationName(), input);
+    }
     @Override
     public String toString() {
         return Objects.toString(input);
diff --git a/src/test/resources/schemas/test.graphqls b/src/test/resources/schemas/test.graphqls
index ee9ce5e4f..ea4e9de6e 100644
--- a/src/test/resources/schemas/test.graphqls
+++ b/src/test/resources/schemas/test.graphqls
@@ -62,9 +62,9 @@ type EventProperty {
     # String comment
     stringVal: String
     # Properties
-    child: [EventProperty]
+    child(first: Int, last: Int): [EventProperty]
     # Parent event of the property
-    parent: Event
+    parent(withStatus: EventStatus): Event
 }
 
 # Custom DateTime scalar