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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 geopos(self, key, member, *members, **kwargs):
 """Returns longitude and latitude of members of a geospatial index. :rtype: list[GeoPoint or None] """

        fut = self.execute(b'GEOPOS', key, member, *members, **kwargs)
        return wait_convert(fut, make_geopos)