package umadump type Never struct{} func (Never) AppendText(b []byte) ([]byte, error) { panic("umadump: attempt to encode value that should never exist") } func (Never) MarshalText() ([]byte, error) { panic("umadump: attempt to encode value that should never exist") } func (Never) UnmarshalText(b []byte) error { panic("umadump: attempt to decode value that should never exist") }