func io.TeeReader

3 uses

	io (current package)
		io.go#L618: func TeeReader(r Reader, w Writer) Reader {

	github.com/go-faster/jx
		dec_capture.go#L20: 		reader := io.TeeReader(d.reader, &buf)

	github.com/gotd/td/mtproxy/faketls
		server_hello.go#L19: 	r = io.TeeReader(r, packetBuf)