Trait MapAsyncOptExt
izanami_util
pub trait MapAsyncOptExt<T, E> { fn map_async_opt<U>(self, op: impl FnOnce(T) -> U) -> Poll<Option<U>, E>; }
fn map_async_opt<U>(self, op: impl FnOnce(T) -> U) -> Poll<Option<U>, E>
impl<T, E> MapAsyncOptExt<T, E> for Poll<Option<T>, E>