(self, x, obs, t, noise)
Args:
            x: State vector.
            obs: Observation vector.
            t: Time step.
            noise: A dU-dimensional noise vector.
        Returns:
            A dU dimensional action vector.
Args:
            x: State vector.
            obs: Observation vector.
            t: Time step.
            noise: A dU-dimensional noise vector.
        Returns:
            A dU dimensional action vector.
Args : x : State vector . obs : Observation vector . t : Time step . noise : A dU - dimensional noise vector . Returns : A dU dimensional action vector .
def act(self, x, obs, t, noise):
        """
        Args:
            x: State vector.
            obs: Observation vector.
            t: Time step.
            noise: A dU-dimensional noise vector.
        Returns:
            A dU dimensional action vector.
        """
        raise NotImplementedError("Must be implemented in subclass.")
def act ( self , x , obs , t , noise ) : raise NotImplementedError ( "Must be implemented in subclass." )