findTransactionSignature
Callable
- Parameters- connection: Connection- A connection to the cluster. 
- reference: PublicKey- referencein the Solana Pay spec
- optionaloptions: SignaturesForAddressOptions- Options for - getSignaturesForAddress.
- optionalfinality: Finality- A subset of Commitment levels, which are at least optimistically confirmed. 
 - Returns Promise<ConfirmedSignatureInfo>
Find the oldest transaction signature referencing a given public key.
if signature canโt be found