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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 main
func Map[F, T any](s []F, f func(F) T) []T { return nil }
func Reduce[Elem1, Elem2 any](s []Elem1, initializer Elem2, f func(Elem2, Elem1) Elem2) Elem2 { var x Elem2; return x }
func main() {
var s []int
var f1 func(int) float64
var f2 func(float64, int) float64
_ = Map[int](s, f1)
_ = Map(s, f1)
_ = Reduce[int](s, 0, f2)
_ = Reduce(s, 0, f2)
}