def format_display_date(date):
    return date.strftime(DISPLAY_DATE_FORMAT)
Model saves should throw some signals.
dataset/ETHPy150Open aws/aws-cli/awscli/customizations/cloudtrail/validation.py/format_display_date--crossover with--dataset/ETHPy150Open MongoEngine/mongoengine/tests/test_signals.py/SignalTests.test_model_signals