taggedTransactionQueue: {
      /**
       * Validate the transaction.
       **/
      validateTransaction: AugmentedCall<ApiType, (source: TransactionSource | 'InBlock' | 'Local' | 'External' | number | Uint8Array, tx: Extrinsic | IExtrinsic | string | Uint8Array, blockHash: BlockHash | string | Uint8Array) => Observable<TransactionValidity>>;