def METHOD_NAME(self):
    """
    Create all the standard dev data in the DB.
    Create standard dev data objects (users, groups, etc) if they don't
    exist. If objects with the same identifier already exist in the DB
    (e.g. a user with the same name as a standard dev data user, or a group
    with the same pubid, etc) but those objects have different values for
    some fields, then overwrite those incorrect values with the standard
    values.
    """
    self.tm.begin()
    for item in self.devdata:
        getattr(self, f"upsert_{item['type']}", self.upsert_model)(**item)
    self.tm.commit()