def add_to_program(self, program: robolink.Item):
    """Adds the instruction to a given RoboDK program."""
    assert program is not None and program.Type() == robolink.ITEM_TYPE_PROGRAM
    if not program.Valid():
        raise ValueError('Simulation not setup correctly. Cannot add {} instruction to given program.'.format(self.name))

def apply_to_cube_state(self, cube_state: CubeState) -> CubeState:
    """Applies the instruction to a given CubeState and returns the result.

    Returns:
        The resulting CubeState
    """
    raise NotImplementedError('Cannot apply to cube state.')

def execute(self):
    """Executes the instruction from within python."""
    raise NotImplementedError('Cannot execute instruction.')