Get Guaranteed Balance
Get the balance of an account that is confirmed at least a specified number of times.
Request:
- requestType is getGuaranteedBalance
 - account is an account ID
 - numberOfConfirmations is the minimum number of confirmations for a transaction to be included in the guaranteed balance (optional, if omitted or zero then
 - minimally confirmed transactions are included)
 - requireBlock is the block ID of a block that must be present in the blockchain during execution (optional)
 - requireLastBlock is the block ID of a block that must be last in the blockchain during execution (optional)
 
Response:
- guaranteedBalanceTQT (S) is the balance (in TQT) of the account with at least numberOfConfirmations confirmations
 - lastBlock (S) is the last block ID on the blockchain (applies if requireBlock is provided but not requireLastBlock)
 - requestProcessingTime (N) is the API request processing time (in millisec)