def add_group_email_grant(self, permission, email_address, headers=None):
        acl = self.get_acl(headers=headers)
        acl.add_group_email_grant(permission, email_address)
        self.set_acl(acl, headers=headers)
Works just like copy_object, except that the source object is deleted
dataset/ETHPy150Open yyuu/botornado/boto/gs/key.py/Key.add_group_email_grant--crossover with--dataset/ETHPy150Open rackspace/pyrax/pyrax/object_storage.py/StorageClient.move_object