async def async_unit_generator(x: Any) -> AsyncGenerator[Any, None]:
    """
    A function that returns a generator of a single element.

    Args:
        x (Any): the element to build yield

    Yields:
        Any: the single element

    """
    yield x

    A function that returns a generator of a single element.

    Args:
        x (Any): the element to build yield

    Yields:
        Any: the single element

    
llama-index-core/llama_index/core/utils.py