std::ops::FnMut - Rust{ // Required method extern "rust-call" fn call_mut( &mut self, args: Args, ) -> Self::Output; }Expand description The version of the call operator that takes a mutable receiver. Instances of FnMut can be called repeatedly and may mutate state. FnMut is implemented automatically by closures which take mutable references to captured variables, as well as all types that implement Fn, e.g., (safe) fu
