<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def is_filtered(self, require=None, ignore=None):
 """Return ``True`` for filtered calls :param iterable ignore: if set, the filters to ignore, make sure to include 'PASS', when setting, default is ``['PASS']`` :param iterable require: if set, the filters to require for returning ``True`` """

        ignore = ignore or ["PASS"]
        if "FT" not in self.data or not self.data["FT"]:
            return False
        for ft in self.data["FT"]:
            if ft in ignore:
                continue  # skip
            if not require:
                return True
            elif ft in require:
                return True
        return False