def _check_equal(obj, **kwargs):
a = hash_pandas_object(obj, **kwargs)<EOL>b = hash_pandas_object(obj, **kwargs)<EOL>tm.assert_series_equal(a, b)<EOL>
Check that hashing an objects produces the same value each time.

Parameters
----------
obj : object
    The object to hash.
kwargs : kwargs
    Keyword arguments to pass to the hashing function.