Test whether any array element along a given axis evaluates to True.

Refer to `numpy.any` for full documentation.

Parameters
----------
axis : int, optional
    Axis along which logical OR is performed
out : ndarray, optional
    Output to existing array instead of creating new one, must have
    same shape as expected output

Returns
-------
    any : bool, ndarray
        Returns a single bool if `axis` is ``None``; otherwise,
        returns `ndarray`

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