<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def check_uniqueness(self, *args):
 """For a unique index, check if the given args are not used twice For the parameters, seen BaseIndex.check_uniqueness """

        self.get_unique_index().check_uniqueness(*self.prepare_args(args, transform=False))