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go/test/typeparam/issue51909.go

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// compile
// Copyright 2022 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
type None struct{}
type Response interface {
send(ctx *struct{})
}
type HandlerFunc[Input any] func(Input) Response
func Operation[Input any](method, path string, h HandlerFunc[Input]) {
var input Input
h(input)
}
func Get[Body any](path string, h HandlerFunc[struct{ Body Body }]) {
Operation("GET", path, h)
}
func main() {
Get("/", func(req struct{ Body None }) Response {
return nil
})
}