[BUG] Modify converter function to check for datatype using pd.np.issubdtype method. This is needed to handle all numeric types such as int32, int64, int16 etc irrespective of the platform.
[BUG] Modify converter function to check for datatype using pd.np.issubdtype method. This is needed to handle all numeric types such as int32, int64, int16 etc irrespective of the platform.

anhaidgroup/py_stringsimjoin,anhaidgroup/py_stringsimjoin