Add documentation for Object.shape()

readme.md

@@ -82,6 +82,7 @@ Reference Types
 
 - [object](#object)
   - [pick/omit/partial](#object.pick/omit/partial)
+  - [shape](#object.shape)
 - [record](#record)
 - [array](#array)
 - [tuple](#tuple)
@@ -392,11 +393,9 @@ emptyObjSchema.parse({ key: 'value' }); // => succeeds
 strictEmptyObjSchema.parse({ key: 'value' }); // => throws ValidationError because not expected key: "key"
 
 const personSchema = myzod.object({
-  name: myzod.string().min(2),
-  age: myzod.number({ min: 0 }).nullable(),
+  name: myzod.string(),
 });
-
-type Person = Infer<typeof personSchema>; // => { name: string; age: number | null }
+const shape = personSchema.shape(); // => returns { name: myzod.string() }
 ```
 
 #### object.withPredicate
@@ -413,6 +412,18 @@ const registrationSchema = myzod
   .withPredicate(value => value.password === value.confirmedPassword, 'password and confirmed do not match');
 ```
 
+#### object.shape
+
+You can extract the shape from an ObjectType.
+
+```typescript
+const registrationSchema = myzod
+  .object({
+    email: z.string()
+  })
+  .withPredicate(value => value.password === value.confirmedPassword, 'password and confirmed do not match');
+```
+
 #### object.pick/omit/partial
 
 The Object type has utility methods pick, omit, and partial for creating new ObjectType schemas based on the current instance. Note once more that predicates do not carry over from base schema.