def _collectstatic_output(self, **kwargs):
out = StringIO()<EOL>call_command('<STR_LIT>', interactive=False, verbosity=<NUM_LIT:3>, stdout=out, **kwargs)<EOL>return out.getvalue()<EOL>
Run collectstatic, and capture and return the output. We want to run
the command at highest verbosity, which is why we can't
just call e.g. BaseCollectionTestCase.run_collectstatic()