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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 _load_into_numpy(sf, np_array, start, end, strides=None, shape=None):
 """Loads into numpy array from SFrame, assuming SFrame stores data flattened"""

    np_array[:] = 0.0
    np_array_2d = np_array.reshape((np_array.shape[0], np_array.shape[1] * np_array.shape[2]))
    _extensions.sframe_load_to_numpy(sf, np_array.ctypes.data,
                                     np_array_2d.strides, np_array_2d.shape,
                                     start, end)