kubernetes/vendor/k8s.io/kube-openapi/pkg/internal/serialization.go

// DeterministicMarshal calls the jsonv2 library with the deterministic
// flag in order to have stable marshaling.
func DeterministicMarshal(in any) ([]byte, error) { … }

// JSONRefFromMap populates a json reference object if the map v contains a $ref key.
func JSONRefFromMap(jsonRef *jsonreference.Ref, v map[string]interface{ … }

// SanitizeExtensions sanitizes the input map such that non extension
// keys (non x-*, X-*) keys are dropped from the map. Returns the new
// modified map, or nil if the map is now empty.
func SanitizeExtensions(e map[string]interface{ … }

// IsExtensionKey returns true if the input string is of format x-* or X-*
func IsExtensionKey(k string) bool { … }