Function pallet_staking::testing_utils::create_unique_stash_controller

pub fn create_unique_stash_controller<T: Config>(
    n: u32,
    balance_factor: u32,
    destination: RewardDestination<T::AccountId>,
    dead_controller: bool
) -> Result<(T::AccountId, T::AccountId), &'static str>

Create a unique stash and controller pair.