def METHOD_NAME(prof) -> str:
    gpu_kernel_items = list(
        filter(lambda x: x.cuda_time_total is not None, prof.key_averages())
    )
    if len(gpu_kernel_items) == 0:
        return "-"
    if len(gpu_kernel_items) == 1:
        return gpu_kernel_items[0].bandwidth
    return ", ".join([f"{x.name}: {x.bandwidth}" for x in gpu_kernel_items])