const os.kindPipe

4 uses

	os (current package)
		file_unix.go#L154: 	kindPipe
		file_unix.go#L178: 	pollable := kind == kindOpenFile || kind == kindPipe || kind == kindNonBlock
		pipe2_unix.go#L21: 	return newFile(p[0], "|0", kindPipe), newFile(p[1], "|1", kindPipe), nil