Indicate if this RunState is currently active.

def active(self) -> bool:
        """Indicate if this RunState is currently active."""
        states = self._client.get_state(self._state_url)['states']
        for state in states:
            state = state['State']
            if int(state['Id']) == self._state_id:
                # yes, the ZM API uses the *string* "1" for this...
                return state['IsActive'] == "1"
        return False