docs: def setPhaseDuration(self, tlsID, phaseDuration):
          """setPhaseDuration(string, integer or float) -> None
  
          Set the phase duration of the current phase in seconds.
          """
          self._connection._sendIntCmd(
              tc.CMD_SET_TL_VARIABLE, tc.TL_PHASE_DURATION, tlsID, int(1000 * phaseDuration))