// go std lib. But for convenience, we expose the type here, too.
type Equalities struct {
	reflect.Equalities
}

// For convenience, panics on errors
func EqualitiesOrDie(funcs ...interface{}) Equalities {
	e := Equalities{reflect.Equalities{}}
	if err := e.AddFuncs(funcs...); err != nil {
		panic(err)
	}
	return e
}

// Performs a shallow copy of the equalities map