(self)
Get current observation. The caller must not assume that the contents of
        this array will never change, so this should usually be followed by a copy.

        Returns:
            numpy array
Get current observation. The caller must not assume that the contents of
        this array will never change, so this should usually be followed by a copy.
Get current observation . The caller must not assume that the contents of this array will never change so this should usually be followed by a copy .
def obs(self):
        '''
        Get current observation. The caller must not assume that the contents of
        this array will never change, so this should usually be followed by a copy.

        Returns:
            numpy array
        '''
        raise NotImplementedError
def obs ( self ) : raise NotImplementedError