def METHOD_NAME(self, ambient):
    """
    Apply the functor to an object of ``self``'s domain.
    TESTS::
        sage: A = ZZ^3
        sage: B = 2 * A
        sage: C = 4 * A
        sage: D = B / C
        sage: F = D.construction()[0]
        sage: D == F(D.construction()[1])
        True
    """
    return ambient.quotient(self._relations)