kubernetes/staging/src/k8s.io/apimachinery/pkg/runtime/serializer/recognizer/recognizer.go

type RecognizingDecoder …

// NewDecoder creates a decoder that will attempt multiple decoders in an order defined
// by:
//
// 1. The decoder implements RecognizingDecoder and identifies the data
// 2. All other decoders, and any decoder that returned true for unknown.
//
// The order passed to the constructor is preserved within those priorities.
func NewDecoder(decoders ...runtime.Decoder) runtime.Decoder { … }

type decoder …

var _ …

func (d *decoder) RecognizesData(data []byte) (bool, bool, error) { … }

func (d *decoder) Decode(data []byte, gvk *schema.GroupVersionKind, into runtime.Object) (runtime.Object, *schema.GroupVersionKind, error) { … }