class Qeweney::Request

def next_chunk(buffered_only = false)
  if @buffered_body_chunks
    chunk = @buffered_body_chunks.shift
    @buffered_body_chunks = nil if @buffered_body_chunks.empty?
    return chunk
  elsif buffered_only
    return nil
  end
  @adapter.get_body_chunk(self, buffered_only)
end