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�		�s�AA$�A$c��|�td�S|�t||�rt|f�S	t|�S#t$rt|f�cYSwxYw)axIf *obj* is iterable, return an iterator over its items::

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    If *obj* is ``None``, return an empty iterable:

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    If *base_type* is set, objects for which ``isinstance(obj, base_type)``
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        ['a']
        >>> list(always_iterable(obj, base_type=dict))  # Treat dicts as a unit
        [{'a': 1}]

    Set *base_type* to ``None`` to avoid any special handling and treat objects
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