func (in *Validation) DeepCopyInto(out *Validation) {
	*out = *in
	if in.Reason != nil {
		in, out := &in.Reason, &out.Reason
		*out = new(v1.StatusReason)
		**out = **in
	}
	return
}

// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Validation.
func (in *Validation) DeepCopy() *Validation {
	if in == nil {
		return nil
	}

            ],
            "x-kubernetes-list-type": "x-kubernetes-list-typeValue",
            "x-kubernetes-map-type": "x-kubernetes-map-typeValue",
            "x-kubernetes-validations": [
              {
                "rule": "ruleValue",
                "message": "messageValue",
                "messageExpression": "messageExpressionValue",
                "reason": "reasonValue",

			errs = append(errs, newErrs...)
		}
	}

	// validate x-kubernetes-validations rules
	if celValidator := a.customResourceStrategy.celValidator; celValidator != nil {
		if has, err := hasBlockingErr(errs); has {
			errs = append(errs, err)
		} else {
			err, _ := celValidator.Validate(ctx, nil, a.customResourceStrategy.structuralSchema, uNew.Object, uOld.Object, celconfig.RuntimeCELCostBudget)

# Body - Fields

The same way you can declare additional validation and metadata in *path operation function* parameters with `Query`, `Path` and `Body`, you can declare validation and metadata inside of Pydantic models using Pydantic's `Field`.

## Import `Field`

First, you have to import it:

=== "Python 3.10+"

    ```Python hl_lines="4"
    {!> ../../../docs_src/body_fields/tutorial001_an_py310.py!}
    ```

=== "Python 3.9+"

)

// NewSimpleClientset returns a clientset that will respond with the provided objects.
// It's backed by a very simple object tracker that processes creates, updates and deletions as-is,
// without applying any validations and/or defaults. It shouldn't be considered a replacement
// for a real clientset and is mostly useful in simple unit tests.
func NewSimpleClientset(objects ...runtime.Object) *Clientset {

	}
}

func (x *ValidationExtensions) toKubeOpenAPI(ret *spec.Schema) {
	if x == nil {
		return
	}

	if len(x.XValidations) > 0 {
		ret.VendorExtensible.AddExtension("x-kubernetes-validations", x.XValidations)
	}
}

func (v *ValueValidation) toKubeOpenAPI(ret *spec.Schema) {
	if v == nil {
		return
	}

	ret.Format = v.Format
	ret.Maximum = v.Maximum

				s.ValueValidation.Required, changed = nil, true
			}

			return changed
		},
		// we drop all junctors above, and hence, never reach nested value validations
		NestedValueValidation: nil,
	}
	mapper.Visit(out)

	return out
}

func filterOut(ss []string, x string) ([]string, bool) {
	var filtered []string
	for i, s := range ss {
		if s == x {

	// x-kubernetes-validations describes a list of validation rules written in the CEL expression language.
	// This field is an alpha-level. Using this field requires the feature gate `CustomResourceValidationExpressions` to be enabled.
	// +patchMergeKey=rule
	// +patchStrategy=merge
	// +listType=map
	// +listMapKey=rule

)

// NewSimpleClientset returns a clientset that will respond with the provided objects.
// It's backed by a very simple object tracker that processes creates, updates and deletions as-is,
// without applying any validations and/or defaults. It shouldn't be considered a replacement
// for a real clientset and is mostly useful in simple unit tests.
func NewSimpleClientset(objects ...runtime.Object) *Clientset {

    - tutorial/index.md
    - tutorial/first-steps.md
    - tutorial/path-params.md
    - tutorial/query-params.md
    - tutorial/body.md
    - tutorial/query-params-str-validations.md
    - tutorial/path-params-numeric-validations.md
    - tutorial/body-multiple-params.md
    - tutorial/body-fields.md
    - tutorial/body-nested-models.md
    - tutorial/schema-extra-example.md
    - tutorial/extra-data-types.md