kubernetes/vendor/github.com/google/gnostic-models/compiler/extensions.go

type ExtensionHandler …

// CallExtension calls a binary extension handler.
func CallExtension(context *Context, in *yaml.Node, extensionName string) (handled bool, response *any.Any, err error) { … }

func (extensionHandlers *ExtensionHandler) handle(in *yaml.Node, extensionName string) (*any.Any, error) { … }