if err != nil {
			return nil, err
		}
	}
	stream, err := c.NewStream(ctx, h.id, payloadB)
	PutByteBuffer(payloadB)
	if err != nil {
		return nil, err
	}

	// respT := make(chan TypedResponse[Resp])
	var reqT chan Req
	if h.InCapacity > 0 {
		reqT = make(chan Req)
		// Request handler
		if stream.Requests == nil {
			return nil, fmt.Errorf("internal error: stream request channel nil")
		}