Function opentitanlib::test_utils::poll::poll_until

pub fn poll_until<F>(timeout: Duration, delay: Duration, f: F) -> Result<()>where
    F: FnMut() -> Result<bool>,

Poll some operation until it returns true or a timeout is hit.

The provided function should return Some(x) when the condition is met, or None to continue polling.

delay can be used to prevent retrying the operation too frequently.