//
	//	t.NumIn() == 2
	//	t.In(0) is the reflect.Type for "int"
	//	t.In(1) is the reflect.Type for "[]float64"
	//	t.IsVariadic() == true
	//
	// IsVariadic panics if the type's Kind is not Func.
	IsVariadic() bool

	// Elem returns a type's element type.
	// It panics if the type's Kind is not Array, Chan, Map, Pointer, or Slice.
	Elem() Type

	// Field returns a struct type's i'th field.

func (t *Type) NumRecvs() int   { return len(t.Recvs()) }
func (t *Type) NumParams() int  { return len(t.Params()) }
func (t *Type) NumResults() int { return len(t.Results()) }

// IsVariadic reports whether function type t is variadic.
func (t *Type) IsVariadic() bool {
	n := t.NumParams()
	return n > 0 && t.Param(n-1).IsDDD()
}

// Recv returns the receiver of function type t, if any.
func (t *Type) Recv() *Field {