import type { TransactionControllerMessenger } from '../TransactionController.js';
import type { TransactionMeta } from '../types.js';
import { OracleLayer1GasFeeFlow } from './OracleLayer1GasFeeFlow.js';
/**
 * Optimism layer 1 gas fee flow that obtains gas fee estimate using an oracle contract.
 */
export declare class OptimismLayer1GasFeeFlow extends OracleLayer1GasFeeFlow {
    #private;
    matchesTransaction({ transactionMeta, }: {
        transactionMeta: TransactionMeta;
        messenger: TransactionControllerMessenger;
    }): Promise<boolean>;
}
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