def reduce_sum_gen_function_call(func_attrs, indent="  "):
    """the registered function for generating a function call to reduce_mean

    Parameters
    ----------
    func_attrs : Dict[str, Any]
        holds attributes of this reduce_mean op
    indent : str, optional
        indentation for each line of the rendered code (default "  ")

    Returns
    -------
    str
        returns rendered code for invoking the reduce op
    """
    if _is_last_reduction_dim(func_attrs):
        return reduce_3d.gen_function_call(func_attrs, indent)
    else:
        return reduce_common.gen_function_call(func_attrs, indent)
the registered function for generating a function call to reduce_mean

    Parameters
    ----------
    func_attrs : Dict[str, Any]
        holds attributes of this reduce_mean op
    indent : str, optional
        indentation for each line of the rendered code (default "  ")

    Returns
    -------
    str
        returns rendered code for invoking the reduce op
    
python/aitemplate/backend/cuda/reduce/reduce_sum.py