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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 all_near_zero(a: Union[float, complex, Iterable[float], np.ndarray], *, atol: float = 1e-8) -> bool: """Checks if the tensor's elements are all near zero. Args: a: Tensor of elements that could all be near zero. atol: Absolute tolerance. """

    return np.all(np.less_equal(np.abs(a), atol))