// Required.
  optional MatchResources matchConstraints = 2;

  // Validations contain CEL expressions which is used to apply the validation.
  // Validations and AuditAnnotations may not both be empty; a minimum of one Validations or AuditAnnotations is
  // required.
  // +listType=atomic
  // +optional
  repeated Validation validations = 3;

	"k8s.io/apimachinery/pkg/util/sets"
	"k8s.io/apiserver/pkg/storage/storagebackend"
	"k8s.io/klog/v2"
)

// Backend describes the storage servers, the information here should be enough
// for health validations.
type Backend struct {
	// the url of storage backend like: https://etcd.domain:2379
	Server string
	// the required tls config
	TLSConfig *tls.Config
}

}

// get validation function for specified path
func getValidationFuncForPath(validations map[string]ValidatorFunc, path util.Path) (ValidatorFunc, bool) {
	pstr := path.String()
	// fast match
	if !strings.Contains(pstr, "[") && !strings.Contains(pstr, "]") {
		vf, ok := validations[pstr]
		return vf, ok
	}
	for p, vf := range validations {
		ps := strings.Split(p, ".")
		if len(ps) != len(path) {
			continue
		}

	"validations":      "Validations contain CEL expressions which is used to apply the validation. Validations and AuditAnnotations may not both be empty; a minimum of one Validations or AuditAnnotations is required.",

	"validations":      "Validations contain CEL expressions which is used to apply the validation. Validations and AuditAnnotations may not both be empty; a minimum of one Validations or AuditAnnotations is required.",

	var warnings []v1.ExpressionWarning // intentionally not setting capacity

	// check main validation expressions and their message expressions, located in spec.validations[*]
	fieldRef := field.NewPath("spec", "validations")
	for i, v := range policy.Spec.Validations {
		results := c.CheckExpression(ctx, v.Expression)
		if len(results) != 0 {
			warnings = append(warnings, v1.ExpressionWarning{

		**out = **in
	}
	if in.MatchConstraints != nil {
		in, out := &in.MatchConstraints, &out.MatchConstraints
		*out = new(MatchResources)
		(*in).DeepCopyInto(*out)
	}
	if in.Validations != nil {
		in, out := &in.Validations, &out.Validations
		*out = make([]Validation, len(*in))
		for i := range *in {
			(*in)[i].DeepCopyInto(&(*out)[i])
		}
	}
	if in.FailurePolicy != nil {

		if err := Convert_v1alpha1_MatchResources_To_admissionregistration_MatchResources(*in, *out, s); err != nil {
			return err
		}
	} else {
		out.MatchConstraints = nil
	}
	out.Validations = *(*[]admissionregistration.Validation)(unsafe.Pointer(&in.Validations))
	out.FailurePolicy = (*admissionregistration.FailurePolicyType)(unsafe.Pointer(in.FailurePolicy))

	// validate x-kubernetes-list-type "map" and "set" invariant
	errs = append(errs, structurallisttype.ValidateListSetsAndMaps(nil, a.structuralSchema, u.Object)...)

	// validate x-kubernetes-validations rules
	if celValidator := a.celValidator; celValidator != nil {
		if has, err := hasBlockingErr(errs); has {
			errs = append(errs, err)
		} else {

    If you don't know, check the [Async: *"In a hurry?"*](../../async.md#in-a-hurry){.internal-link target=_blank} section about `async` and `await` in the docs.

## Integrated with OpenAPI

All the request declarations, validations and requirements of your dependencies (and sub-dependencies) will be integrated in the same OpenAPI schema.

So, the interactive docs will have all the information from these dependencies too: