// compile

// Copyright 2020 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 p

type S1[T any] struct{}

type S2[K comparable] struct{}

type S3[K comparable] struct {
	f map[K]*S1[*S2[K]]
}

var V = S3[int]{
	f: make(map[int]*S1[*S2[int]]),
}