Function random 

pub fn random<Effect, Event>(
    min: usize,
    max: usize,
) -> RequestBuilder<Effect, Event, impl Future<Output = DelayOutput>>
where
    Effect: Send + From<Request<DelayOperation>> + 'static,
    Event: Send + 'static,

Request a delay for a random duration between min and max milliseconds.

Panics

• will panic if min is greater than max.
• will panic if the shell responds with the incorrect DelayOutput variant.