diff --git a/src/structures/IOpenAiSchema.ts b/src/structures/IOpenAiSchema.ts
index 5ea7bfc..80e1af6 100644
--- a/src/structures/IOpenAiSchema.ts
+++ b/src/structures/IOpenAiSchema.ts
@@ -447,24 +447,83 @@ export namespace IOpenAiSchema {
        * Path of the endpoint.
        */
       path: string;
-
-      /**
-       * Function returning transformed values using JMESPath expression.
-       *
-       * `Prerequisite.Props.jmesPath` is a string typed property that extracts desired values
-       * from the prerequisite API response using a JMESPath expression. This property simplifies
-       * and replaces the `label`, `value`, and `array` properties.
-       *
-       * JMESPath expressions are used to extract the desired data based on the API response.
-       * The expression must always be a valid JMESPath syntax.
-       *
-       * - Type: `jmesPath: string`
-       * - Example: `"members[*].data.title"`
-       * - Usage: `jmespath.search(response, jmesPath)`
-       * 
-       * Note: The `label`, `value`, and `array` properties are no longer in use.
-       */
-      jmesPath: string;
-    };
+    } & (
+      | {
+          /**
+           * Function returning transformed values using JMESPath expression.
+           *
+           * `Prerequisite.Props.jmesPath` is a string typed property that extracts desired values
+           * from the prerequisite API response using a JMESPath expression. This property simplifies
+           * and replaces the `label`, `value`, and `array` properties.
+           *
+           * JMESPath expressions are used to extract the desired data based on the API response.
+           * The expression must always be a valid JMESPath syntax.
+           *
+           * - Type: `jmesPath: string`
+           * - Example: `"members[*].data.title"`
+           * - Usage: `jmespath.search(response, jmesPath)`
+           *
+           * Note: The `label`, `value`, and `array` properties are no longer in use.
+           */
+          jmesPath: string;
+        }
+      | {
+          /**
+           * Transform function returning label.
+           *
+           * `Prerequisite.Props.label` is a string typed property representing
+           * a function returning the label from the element instance of the
+           * prerequisite API respond array.
+           *
+           * The function script must be a string value that can be parsed by
+           * `new Function(string)` statement. Also, its parameter names are
+           * always `elem`, `index` and `array`. Of course, the function's
+           * return type must be always `string`.
+           *
+           * - type: `label: (elem: Element, index: number, array: Element[]) => string`
+           * - example: `return elem.title`
+           * - how to use: `new Function("elem", "index", "array", labelScript)(...)`
+           */
+          label: string;
+
+          /**
+           * Transform function returning target value.
+           *
+           * `Prerequisite.Props.value` is a string typed property representing
+           * a function returning the target value from the element instance of
+           * the prerequisite API respond array. If you've defined this `Prerequisite`
+           * type to a `number` type, the returned value must be actual number type.
+           *
+           * The function script must be a string value that can be parsed by
+           * `new Function(string)` statement. Also, its parameter names are always
+           * `elem`, `index` and `array`.
+           *
+           * - type: `value: (elem: Element, index: number, array: Element[]) => Value`
+           * - example: `return elem.no`
+           * - how to use: `new Function("elem", "index", "array", valueScript)(...)`
+           */
+          value: string;
+
+          /**
+           * Transform function returning array instance.
+           *
+           * `Prerequisite.Props.array` is a string typed property representing
+           * a function returning an array instance from the response of the
+           * prerequisite API.
+           *
+           * The function script must be a string value that can be parsed by
+           * `new Function(string)` statement. Also, its parameter name is
+           * always `response`.
+           *
+           * If the prerequisite API responses an array and it is the desired one,
+           * you don't need to specify this property.
+           *
+           * - type: `array: (response: Response) => Elemenet[]`
+           * - example: `return response.members.map(m => m.data)`
+           * - how to use: `new Function("response", arrayScript)(response)`
+           */
+          array?: string;
+        }
+    );
   }
 }
diff --git a/src/structures/ISwaggerSchema.ts b/src/structures/ISwaggerSchema.ts
index 6651462..f0fa7f7 100644
--- a/src/structures/ISwaggerSchema.ts
+++ b/src/structures/ISwaggerSchema.ts
@@ -169,24 +169,83 @@ export namespace ISwaggerSchema {
        * Path of the endpoint.
        */
       path: string;
-
-      /**
-       * Function returning transformed values using JMESPath expression.
-       *
-       * `Prerequisite.Props.jmesPath` is a string typed property that extracts desired values
-       * from the prerequisite API response using a JMESPath expression. This property simplifies
-       * and replaces the `label`, `value`, and `array` properties.
-       *
-       * JMESPath expressions are used to extract the desired data based on the API response.
-       * The expression must always be a valid JMESPath syntax.
-       *
-       * - Type: `jmesPath: string`
-       * - Example: `"members[*].data.title"`
-       * - Usage: `jmespath.search(response, jmesPath)`
-       *
-       * Note: The `label`, `value`, and `array` properties are no longer in use.
-       */
-      jmesPath: string;
-    };
+    } & (
+      | {
+          /**
+           * Function returning transformed values using JMESPath expression.
+           *
+           * `Prerequisite.Props.jmesPath` is a string typed property that extracts desired values
+           * from the prerequisite API response using a JMESPath expression. This property simplifies
+           * and replaces the `label`, `value`, and `array` properties.
+           *
+           * JMESPath expressions are used to extract the desired data based on the API response.
+           * The expression must always be a valid JMESPath syntax.
+           *
+           * - Type: `jmesPath: string`
+           * - Example: `"members[*].data.title"`
+           * - Usage: `jmespath.search(response, jmesPath)`
+           *
+           * Note: The `label`, `value`, and `array` properties are no longer in use.
+           */
+          jmesPath: string;
+        }
+      | {
+          /**
+           * Transform function returning label.
+           *
+           * `Prerequisite.Props.label` is a string typed property representing
+           * a function returning the label from the element instance of the
+           * prerequisite API respond array.
+           *
+           * The function script must be a string value that can be parsed by
+           * `new Function(string)` statement. Also, its parameter names are
+           * always `elem`, `index` and `array`. Of course, the function's
+           * return type must be always `string`.
+           *
+           * - type: `label: (elem: Element, index: number, array: Element[]) => string`
+           * - example: `return elem.title`
+           * - how to use: `new Function("elem", "index", "array", labelScript)(...)`
+           */
+          label: string;
+
+          /**
+           * Transform function returning target value.
+           *
+           * `Prerequisite.Props.value` is a string typed property representing
+           * a function returning the target value from the element instance of
+           * the prerequisite API respond array. If you've defined this `Prerequisite`
+           * type to a `number` type, the returned value must be actual number type.
+           *
+           * The function script must be a string value that can be parsed by
+           * `new Function(string)` statement. Also, its parameter names are always
+           * `elem`, `index` and `array`.
+           *
+           * - type: `value: (elem: Element, index: number, array: Element[]) => Value`
+           * - example: `return elem.no`
+           * - how to use: `new Function("elem", "index", "array", valueScript)(...)`
+           */
+          value: string;
+
+          /**
+           * Transform function returning array instance.
+           *
+           * `Prerequisite.Props.array` is a string typed property representing
+           * a function returning an array instance from the response of the
+           * prerequisite API.
+           *
+           * The function script must be a string value that can be parsed by
+           * `new Function(string)` statement. Also, its parameter name is
+           * always `response`.
+           *
+           * If the prerequisite API responses an array and it is the desired one,
+           * you don't need to specify this property.
+           *
+           * - type: `array: (response: Response) => Elemenet[]`
+           * - example: `return response.members.map(m => m.data)`
+           * - how to use: `new Function("response", arrayScript)(response)`
+           */
+          array?: string;
+        }
+    );
   }
 }