def set_arg(self, value):
        named_arg = '{0}A{1}'.format(self.arg_prefix, self.arg_index)
        self.args[named_arg] = value
        self.arg_index += 1
        return named_arg
Determines the extent of differences between two strings.
dataset/ETHPy150Open ambitioninc/django-query-builder/querybuilder/query.py/Where.set_arg--crossover with--dataset/ETHPy150Open edgewall/trac/trac/versioncontrol/diff.py/get_change_extent