nl: dest set to string 'load_initial_data', default set to boolean True, and help as a string 'Tells Django not to load any initial data after database synchronization.' call the method parser.add_argument with 3 arguments: string '--database', default set to DEFAULT_DB_ALIAS,
code: parser . add_argument ( '--database' , default = DEFAULT_DB_ALIAS , help = 'Nominates a database to synchronize. Defaults to the "default" database.' )