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// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package a

func F[T any]() A[T] {
	var x A[T]
	return x
}

type A[T any] struct {
	b B[T]
}

func (a A[T]) M() C[T] {
	return C[T]{
		B: a.b,
	}
}

type B[T any] struct{}

type C[T any] struct {
	B B[T]
}