docs: def setRedYellowGreenState(self, tlsID, state):
          """setRedYellowGreenState(string, string) -> None
  
          Sets the named tl's state as a tuple of light definitions from
          rugGyYuoO, for red, red-yellow, green, yellow, off, where lower case letters mean that the stream has to decelerate.
          """
          self._connection._sendStringCmd(
              tc.CMD_SET_TL_VARIABLE, tc.TL_RED_YELLOW_GREEN_STATE, tlsID, state)