code: func (r *WriteRequest) Respond(resp *WriteResponse) {
  	out := &writeOut{
  		outHeader: outHeader{Unique: uint64(r.ID)},
  		Size:      uint32(resp.Size),
  	}
  	r.Conn.respond(&out.outHeader, unsafe.Sizeof(*out))
  }
docs: // Respond replies to the request with the given response.