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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _approx_equal(x, y, eps):
 """Test if elements ``x`` and ``y`` are approximately equal. ``eps`` is a given absolute tolerance. """

    if x.space != y.space:
        return False

    if x is y:
        return True

    try:
        return x.dist(y) <= eps
    except NotImplementedError:
        try:
            return x == y
        except NotImplementedError:
            return False