The transaction block to add the repayment operation to
Asset identifier being repaid
Receipt from the original flash loan transaction
Coin object containing the repayment amount
Optional
options: Partial<EnvOption>Optional environment configuration
Tuple containing [balance] after repayment
Repay a flash loan transaction in the PTB
This function repays the flash loan using the receipt from the original flash loan and the coin object containing the repayment amount.