def get_next_week(self, date):
        return _get_next_prev(self, date, is_previous=False, period='week')
Adds 'element' as a child of the element identified by 'pid'.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/views/generic/dates.py/WeekMixin.get_next_week--crossover with--dataset/ETHPy150Open enthought/pyface/pyface/viewer/tree_viewer.py/TreeViewer._add_element