public function unlockUTXO($txHash, $txIdx) {
        return $this->sdk->unlockWalletUTXO($this->identifier, $txHash, $txIdx);
    }
public function unlockUTXO($txHash, $txIdx) {
        return $this->sdk->unlockWalletUTXO($this->identifier, $txHash, $txIdx);
    }
public function unlockUTXO ( $ txHash , $ txIdx ) { return $ this -> sdk -> unlockWalletUTXO ( $ this -> identifier , $ txHash , $ txIdx ) ; }
unlock a specific unspent output

@param     $txHash
@param     $txIdx
@return bool
unlock a specific unspent output