parameters: (self, serialized)
docstring: Merges serialized protocol buffer data into this message.
  
      When we find a field in `serialized` that is already present
      in this message:
  
      -   If it's a "repeated" field, we append to the end of our list.
      -   Else, if it's a scalar, we overwrite our field.
      -   Else, (it's a nonrepeated composite), we recursively merge
          into the existing composite.
  
      Args:
        serialized (bytes): Any object that allows us to call
          ``memoryview(serialized)`` to access a string of bytes using the
          buffer interface.
  
      Returns:
        int: The number of bytes read from `serialized`.
        For non-group messages, this will always be `len(serialized)`,
        but for messages which are actually groups, this will
        generally be less than `len(serialized)`, since we must
        stop when we reach an ``END_GROUP`` tag.  Note that if
        we *do* stop because of an ``END_GROUP`` tag, the number
        of bytes returned does not include the bytes
        for the ``END_GROUP`` tag information.
  
      Raises:
        DecodeError: if the input cannot be parsed.
docstring_summary: Merges serialized protocol buffer data into this message.
docstring_tokens: Merges serialized protocol buffer data into this message .
function: def MergeFromString(self, serialized):
      """Merges serialized protocol buffer data into this message.
  
      When we find a field in `serialized` that is already present
      in this message:
  
      -   If it's a "repeated" field, we append to the end of our list.
      -   Else, if it's a scalar, we overwrite our field.
      -   Else, (it's a nonrepeated composite), we recursively merge
          into the existing composite.
  
      Args:
        serialized (bytes): Any object that allows us to call
          ``memoryview(serialized)`` to access a string of bytes using the
          buffer interface.
  
      Returns:
        int: The number of bytes read from `serialized`.
        For non-group messages, this will always be `len(serialized)`,
        but for messages which are actually groups, this will
        generally be less than `len(serialized)`, since we must
        stop when we reach an ``END_GROUP`` tag.  Note that if
        we *do* stop because of an ``END_GROUP`` tag, the number
        of bytes returned does not include the bytes
        for the ``END_GROUP`` tag information.
  
      Raises:
        DecodeError: if the input cannot be parsed.
      """
      # TODO(robinson): Document handling of unknown fields.
      # TODO(robinson): When we switch to a helper, this will return None.
      raise NotImplementedError
function_tokens: def MergeFromString ( self , serialized ) : # TODO(robinson): Document handling of unknown fields. # TODO(robinson): When we switch to a helper, this will return None. raise NotImplementedError