Function benchmarking::bench_function_n_with_duration

pub fn bench_function_n_with_duration<F, O>(
    n: usize, 
    duration: Duration, 
    f: F
) -> Result<Vec<MeasureResult>, BenchmarkError> where
    F: FnMut(&mut [Measurer]) -> O + 'static, 

Run a function with a specific duration and measure its execution time.