Function solana_ramp_tps::voters::calculate_leader_records

pub fn calculate_leader_records(
    rpc_client: &RpcClient, 
    epoch_schedule: &EpochSchedule, 
    start_slot: Slot, 
    end_slot: Slot, 
    notifier: &Notifier
) -> ClientResult<HashMap<Pubkey, LeaderRecord>>

Calculate the leader record for each active validator