def initialize_asset_loader(engine):
    """
    Initialize asset loader
    Args:
        engine: baseEngine

    Returns: None

    """
    # load model file in utf-8
    os.environ["PYTHONUTF8"] = "on"
    if AssetLoader.initialized():
        AssetLoader.logger.warning(
            "AssetLoader is initialize to root path: {}! But you are initializing again!".format(
                AssetLoader.asset_path
            )
        )
        return
    AssetLoader.init_loader(engine)

    Initialize asset loader
    Args:
        engine: baseEngine

    Returns: None

    
metadrive/engine/asset_loader.py