class HTTP::Request::Writer

def send_request_body
  if @body.is_a?(String)
    @socket << @body
  elsif @body.is_a?(Enumerable)
    @body.each do |chunk|
      @socket << chunk.bytesize.to_s(16) << CRLF
      @socket << chunk << CRLF
    end
    @socket << ZERO << CRLF << CRLF
  end
end