Function repayCoinPTB

repayCoinPTB(
    tx: Transaction,
    identifier: AssetIdentifier,
    coinObject: CoinObject,
    options?: Partial<
        EnvOption & AccountCapOption & { amount: number
        | TransactionResult },
    >,
): Promise<Transaction>
Builds a repay transaction for a lending pool debt

Constructs and adds repayment operations to an existing transaction object. This function handles loan repayments, supporting both standard user repayments and privileged operations via account capabilities.
Parameters
- tx: Transaction
  The transaction builder to append repayment operations to
- identifier: AssetIdentifier
  Unique identifier for the lending pool asset (e.g., "USDC", "SUI")
- coinObject: CoinObject
  The coin object to use for repayment, or GasCoin for SUI payments
- Optionaloptions: Partial<EnvOption & AccountCapOption & { amount: number | TransactionResult }>
  Configuration options for the repayment
  
  amount - Specific amount to repay (required for SUI gas coin, otherwise uses value of specified coinObject)
  
  accountCap - Optional account capability object for privileged repayments
  
  env - Environment configuration
  
  cacheTime - Cache duration for configuration data
Returns Promise<Transaction>
Promise - The modified transaction object with repayment operations added

Throws
When amount is not provided for SUI gas coin repayments

Throws
Will throw if pool doesn't exist or repayment validation fails
- Defined in packages/lending/src/pool.ts:402