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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 assert_sigfigs_equal(x, y, sigfigs=3):
 """ Tests if all elements in x and y agree up to a certain number of significant figures. :param np.ndarray x: Array of numbers. :param np.ndarray y: Array of numbers you want to be equal to ``x``. :param int sigfigs: How many significant figures you demand that they share. Default is 3. """

    # determine which power of 10 best describes x
    xpow =  np.floor(np.log10(x))
    # now rescale 1 \leq x < 9
    x = x * 10**(- xpow)
    # scale y by the same amount
    y = y * 10**(- xpow)

    # now test if abs(x-y) < 0.5 * 10**(-sigfigs)
    assert_almost_equal(x, y, sigfigs)