Function xi_trace::trace_closure_payload

pub fn trace_closure_payload<S, C, P, F, R>(
    name: S, 
    categories: C, 
    closure: F, 
    payload: P
) -> R where
    S: Into<StrCow>,
    C: Into<CategoriesT>,
    P: Into<TracePayloadT>,
    F: FnOnce() -> R, 

See trace_closure for how the closure works and trace_payload for a discussion on payload.