vendor: bump k8s to v0.25.4

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

vendor/k8s.io/kube-openapi/pkg/spec3/example.go

@@ -0,0 +1,73 @@
+/*
+Copyright 2021 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package spec3
+
+import (
+	"encoding/json"
+
+	"k8s.io/kube-openapi/pkg/validation/spec"
+	"github.com/go-openapi/swag"
+)
+
+// Example https://swagger.io/specification/#example-object
+
+type Example struct {
+	spec.Refable
+	ExampleProps
+	spec.VendorExtensible
+}
+
+// MarshalJSON is a custom marshal function that knows how to encode RequestBody as JSON
+func (e *Example) MarshalJSON() ([]byte, error) {
+	b1, err := json.Marshal(e.Refable)
+	if err != nil {
+		return nil, err
+	}
+	b2, err := json.Marshal(e.ExampleProps)
+	if err != nil {
+		return nil, err
+	}
+	b3, err := json.Marshal(e.VendorExtensible)
+	if err != nil {
+		return nil, err
+	}
+	return swag.ConcatJSON(b1, b2, b3), nil
+}
+
+func (e *Example) UnmarshalJSON(data []byte) error {
+	if err := json.Unmarshal(data, &e.Refable); err != nil {
+		return err
+	}
+	if err := json.Unmarshal(data, &e.ExampleProps); err != nil {
+		return err
+	}
+	if err := json.Unmarshal(data, &e.VendorExtensible); err != nil {
+		return err
+	}
+	return nil
+}
+
+type ExampleProps struct {
+	// Summary holds a short description of the example
+	Summary string `json:"summary,omitempty"`
+	// Description holds a long description of the example
+	Description string `json:"description,omitempty"`
+	// Embedded literal example.
+	Value interface{} `json:"value,omitempty"`
+	// A URL that points to the literal example. This provides the capability to reference examples that cannot easily be included in JSON or YAML documents.
+	ExternalValue string `json:"externalValue,omitempty"`
+}