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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 _validate_initial_centers(initial_centers):
 """ Validate the initial centers. Parameters initial_centers : SFrame Initial cluster center locations, in SFrame form. """

    if not (isinstance(initial_centers, _SFrame)):
        raise TypeError("Input 'initial_centers' must be an SFrame.")

    if initial_centers.num_rows() == 0 or initial_centers.num_columns() == 0:
        raise ValueError("An 'initial_centers' argument is provided " +
                         "but has no data.")