<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def render(self, form=None, **kwargs):
 """ Returns a ``HttpResponse`` containing a all needed context data. """

        form = form or self.get_form()
        context = self.get_context_data(form, **kwargs)
        return self.render_to_response(context)