pub fn polling_interval(&mut self, polling_interval: Duration) -> Result<(), ClientError> {
        if polling_interval >= Self::MIN_POLLING_INTERVAL {
            self.polling_interval = polling_interval;
            Ok(())
        } else {
            Err(ClientError::PollingIntervalIsTooSmall)
        }
    }
Sets the polling interval. Must be at least 200 milliseconds.
core/tests/loadnext/src/sdk/operations/mod.rs