def catch_signal(sender, using=None, **kwargs):
    if using != 'default':
        # only sync for the default DB
        return

    app_name = sender.label.rsplit('.', 1)[0]
    app_label = app_name.split('.')[-1]
    plugin = get_preindex_plugin(app_label)
    if plugin:
        plugin.sync_design_docs()
Sets the msu user summary dictionary to Datstore.
dataset/ETHPy150Open dimagi/commcare-hq/corehq/preindex/models.py/catch_signal--crossover with--dataset/ETHPy150Open google/simian/src/simian/mac/models/base.py/ReportsCache.SetMsuUserSummary