Function parallel_execute 

pub async fn parallel_execute<F, Fut, T, E>(
    operations: Vec<F>,
    operation_timeout: Duration,
) -> Vec<Result<T, E>>
where
    F: FnOnce() -> Fut + Send + 'static,
    Fut: Future<Output = Result<T, E>> + Send + 'static,
    T: Send + 'static,
    E: From<String> + Send + 'static,

Execute multiple async operations in parallel with timeout