pub fn validate_fee_payer(
payer_address: &Pubkey,
payer_account: &mut AccountSharedData,
payer_index: IndexOfAccount,
error_counters: &mut TransactionErrorMetrics,
rent_collector: &RentCollector,
fee: u64,
) -> Result<()>
pub fn validate_fee_payer(
payer_address: &Pubkey,
payer_account: &mut AccountSharedData,
payer_index: IndexOfAccount,
error_counters: &mut TransactionErrorMetrics,
rent_collector: &RentCollector,
fee: u64,
) -> Result<()>