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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_default_backend_config(appdirs):
 """ Return a default config dictionary. Args: appdirs (HamsterAppDirs):
 ``HamsterAppDirs`` instance encapsulating the apps details. Returns: dict: Dictionary with a default configuration. Note: Those defaults are independent of the particular config-store. """

    return {
        'store': 'sqlalchemy',
        'day_start': datetime.time(5, 30, 0),
        'fact_min_delta': 1,
        'tmpfile_path': os.path.join(appdirs.user_data_dir, '{}.tmp'.format(appdirs.appname)),
        'db_engine': 'sqlite',
        'db_path': os.path.join(appdirs.user_data_dir, '{}.sqlite'.format(appdirs.appname)),
    }