def _add_delta(self, other):
if not isinstance(self.freq, Tick):<EOL><INDENT>_raise_on_incompatible(self, other)<EOL><DEDENT>new_ordinals = super()._add_delta(other)<EOL>return type(self)(new_ordinals, freq=self.freq)<EOL>
Add a timedelta-like, Tick, or TimedeltaIndex-like object
to self, yielding a new PeriodArray

Parameters
----------
other : {timedelta, np.timedelta64, Tick,
         TimedeltaIndex, ndarray[timedelta64]}

Returns
-------
result : PeriodArray