import { Step, StepExecutionContext, JsonRpcHandler } from '../types';
import { StepExecutor, StepExecutionResult } from './types';
import { Logger } from '../util/logger';
import { RequestStep } from './types';
import { PolicyResolver } from '../util/policy-resolver';
export declare class RequestStepExecutor implements StepExecutor {
    private jsonRpcHandler;
    private requestId;
    private logger;
    private policyResolver;
    constructor(jsonRpcHandler: JsonRpcHandler, logger: Logger, policyResolver: PolicyResolver);
    private getNextRequestId;
    canExecute(step: Step): step is RequestStep;
    /**
     * Get the effective timeout value for a step
     * @param step The request step to get timeout for
     * @param context The execution context with flow-level timeouts
     * @returns Timeout in milliseconds or undefined if no timeout is set
     */
    private getStepTimeout;
    /**
     * Get the effective retry policy for a step
     * @param step The request step to get retry policy for
     * @returns RetryPolicy or null if retries are disabled
     */
    private getStepRetryPolicy;
    execute(step: Step, _context: StepExecutionContext, extraContext?: Record<string, any>, signal?: AbortSignal): Promise<StepExecutionResult>;
}