import type { ExecuteStepRequest, ExecutionStatusResponse } from "../gen/messages_pb";
import { ExecutionProcessor } from "./ExecutionProcessor";
import type { ParameterParsingChain } from "./params/ParameterParsingChain";
export declare class StepExecutionProcessor extends ExecutionProcessor {
    private parsingChain;
    constructor(parameterParsingChain: ParameterParsingChain);
    process(req: ExecuteStepRequest): Promise<ExecutionStatusResponse>;
    private execute;
    private executionError;
}