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