Macro webserver_rs::create_router

macro_rules! create_router {
    ($($m:ident)::*,$($method:ident),+) => { ... };
    ($prefix:literal,$($m:ident)::*,$($method:ident),+) => { ... };
    (IN $e:expr, $m:path , $($method:ident),+) => { ... };
}