pub(crate) fn block_on<F: std::future::Future<Output = T>, T>(future: F) -> T {
#[cfg(feature = "async-io")]
let run = || async_io::block_on(future);
#[cfg(not(feature = "async-io"))]
let run = || futures_lite::future::block_on(future);
#[cfg(feature = "tokio")]
let _tokio_enter = crate::tokio::enter();
run()
}