Function benchmarking::multi_thread_bench_function_n

pub fn multi_thread_bench_function_n<F, O>(
    n: usize, 
    number_of_threads: usize, 
    f: F
) -> Result<Vec<MeasureResult>, BenchmarkError> where
    F: Fn(&mut [Measurer]) -> O + Send + Sync + 'static, 

Run a function with a number of threads for 5 seconds and measure its execution time.