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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 zeros(shape, dtype=None, **kwargs):
 """Returns a new symbol of given shape and type, filled with zeros. Parameters shape : int or sequence of ints Shape of the new array. dtype : str or numpy.dtype, optional The value type of the inner value, default to ``np.float32``. Returns ------- out : Symbol The created Symbol. """

    if dtype is None:
        dtype = _numpy.float32
    return _internal._zeros(shape=shape, dtype=dtype, **kwargs)