pub unsafe trait MaybeSend: Send { }Expand description
Considering lots of runtimes does not require std::marker::Send for
std::future::Future and futures_core::stream::Stream, we provide a trait to
represent the future or stream that may not require std::marker::Send. Users could
switch the feature no-send at compile-time to disable the std::marker::Send bound
for std::future::Future and futures_core::stream::Stream.
§Safety
Do not implement it directly.