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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 norm_nuclear(X):
 r"""Compute the nuclear norm .. math:: \| X \|_* = \sum_i \sigma_i where :math:`\sigma_i` are the singular values of matrix :math:`X`. Parameters X : array_like Input array :math:`X` Returns ------- nncl : float Nuclear norm of `X` """


    return np.sum(np.linalg.svd(sl.promote16(X), compute_uv=False))