reflect.rtype.NumOut (method, view implemented interface methods)

4 uses

	reflect (current package)
		type.go#L990: func (t *rtype) NumOut() int {
		type.go#L1632: 		for i := 0; i < t.NumOut(); i++ {
		value.go#L431: 	nout := t.NumOut()
		value.go#L566: 	numOut := ftyp.NumOut()