amino.go
func (cdc *Codec) MustUnmarshalJSON(bz []byte, ptr interface{}) {
	if err := cdc.UnmarshalJSON(bz, ptr); err != nil {
		panic(err)
	}
}
func (cdc *Codec) MustUnmarshalJSON(bz []byte, ptr interface{}) {
	if err := cdc.UnmarshalJSON(bz, ptr); err != nil {
		panic(err)
	}
}
// MustUnmarshalJSON panics if an error occurs. Besides tha behaves exactly like UnmarshalJSON.