docs: def to_frame(self, data, state):
          """
          Extract a single frame from the data buffer.  The consumed
          data should be removed from the buffer.  If no complete frame
          can be read, must raise a ``NoFrames`` exception.
  
          :param data: A ``bytearray`` instance containing the data so
                       far read.
          :param state: An instance of ``FramerState``.  If the buffer
                        contains a partial frame, this object can be
                        used to store state information to allow the
                        remainder of the frame to be read.
  
          :returns: A frame.  The frame may be any object.  The stock
                    framers always return bytes.
          """
  
          # Find the next null byte
          data_len = data.find(b'\0')
  
          if data_len < 0:
              # No full frame yet
              raise exc.NoFrames()
  
          # Track how much to exclude
          frame_len = data_len + 1
  
          # Decode the data
          frame = six.binary_type(self.variant.decode(
              six.binary_type(data[:data_len])))
          del data[:frame_len]
  
          # Return the frame
          return frame