user

type Embed interface {
	RegularMethod()
	Embedded
	imp1.ForeignEmbedded
}

type Embedded interface {
	EmbeddedMethod()
}

type Index interface {
	Get(key string) interface{}
	GetTwo(key1, key2 string) (v1, v2 interface{})
	Put(key string, value interface{})

	// Check that imports are handled correctly.
	Summary(buf *btz.Buffer, w io.Writer)
	Other() hash.Hash
	Templates(a t1.CSS, b t2.FuncMap)

	// A method with an anonymous argument.
	Anon(string)

	// Methods using foreign types outside the standard library.
	ForeignOne(imp1.Imp1)
	ForeignTwo(renamed2.Imp2)
	ForeignThree(Imp3)
	ForeignFour(imp_four.Imp4)

	// A method that returns a nillable type.
	NillableRet() error
	// A method that returns a non-interface type.
	ConcreteRet() chan<- bool

	// Methods with an ellipsis argument.
	Ellip(fmt string, args ...interface{})
	EllipOnly(...string)

	// A method with a pointer argument that we will set.
	Ptr(arg *int)

	// A method with a slice argument and an array return.
	Slice(a []int, b []byte) [3]int

	// A method with channel arguments.
	Chan(a chan int, b chan<- hash.Hash)

	// A method with a function argument.
	Func(f func(http.Request) (int, bool))

	// A method with a map argument.
	Map(a map[int]hash.Hash)

	// Methods with an unnamed empty struct argument.
	Struct(a struct{})          // not so likely
	StructChan(a chan struct{}) // a bit more common
}