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first_supported

Function first_supported 

Source
pub(super) fn first_supported<'a, T: Copy>(
    requested: impl IntoIterator<Item = &'a str>,
    supported: &[(&'static str, T)],
) -> Option<(T, &'static str)>
Expand description

The first of the protocols a client requested which the server supports, in the order of the client, with its name.