parameters: (self, str)
docstring: unpack serialized message in str into this message instance
      :param str: byte array of serialized message, ``str``
docstring_summary: unpack serialized message in str into this message instance
      :param str: byte array of serialized message, ``str``
docstring_tokens: unpack serialized message in str into this message instance : param str : byte array of serialized message str
function: def deserialize(self, str):
      """
      unpack serialized message in str into this message instance
      :param str: byte array of serialized message, ``str``
      """
      try:
        if self.header is None:
          self.header = std_msgs.msg.Header()
        end = 0
        _x = self
        start = end
        end += 12
        (_x.header.seq, _x.header.stamp.secs, _x.header.stamp.nsecs,) = _struct_3I.unpack(str[start:end])
        start = end
        end += 4
        (length,) = _struct_I.unpack(str[start:end])
        start = end
        end += length
        if python3:
          self.header.frame_id = str[start:end].decode('utf-8')
        else:
          self.header.frame_id = str[start:end]
        _x = self
        start = end
        end += 11
        (_x.loop_rate, _x.voltage, _x.seq,) = _struct_HdB.unpack(str[start:end])
        return self
      except struct.error as e:
        raise genpy.DeserializationError(e)
function_tokens: def deserialize ( self , str ) : try : if self . header is None : self . header = std_msgs . msg . Header ( ) end = 0 _x = self start = end end += 12 ( _x . header . seq , _x . header . stamp . secs , _x . header . stamp . nsecs , ) = _struct_3I . unpack ( str [ start : end ] ) start = end end += 4 ( length , ) = _struct_I . unpack ( str [ start : end ] ) start = end end += length if python3 : self . header . frame_id = str [ start : end ] . decode ( 'utf-8' ) else : self . header . frame_id = str [ start : end ] _x = self start = end end += 11 ( _x . loop_rate , _x . voltage , _x . seq , ) = _struct_HdB . unpack ( str [ start : end ] ) return self except struct . error as e : raise genpy . DeserializationError ( e )