def METHOD_NAME() -> None:
    global _dict
    config_path_via_env_var = os.environ.get(ENV_VAR_SKYPILOT_CONFIG)
    if config_path_via_env_var is not None:
        config_path = config_path_via_env_var
    else:
        config_path = CONFIG_PATH
    config_path = os.path.expanduser(config_path)
    if os.path.exists(config_path):
        logger.debug(f'Using config path: {config_path}')
        try:
            _dict = common_utils.read_yaml(config_path)
            logger.debug(f'Config loaded:\n{pprint.pformat(_dict)}')
        except yaml.YAMLError as e:
            logger.error(f'Error in loading config file ({config_path}):', e)
        for cloud in cloud_registry.CLOUD_REGISTRY:
            _syntax_check_for_ssh_proxy_command(cloud)
        logger.debug('Config syntax check passed.')