import { Observable } from '../core/observability/Observable';
import { AgentEvent } from '../core/observability/event_validation';
export declare class ReActLLMResponseStreamParser extends Observable {
    private buffer;
    private partialResponse;
    private step;
    constructor();
    generateEvent(methodName: string, result: any, error?: any): AgentEvent;
    private findBalancedSubstring;
    private extractProgressiveKeys;
    processChunk(chunk: string): void;
    processChunk_old(chunk: string): void;
    private findCompleteJson;
    private updatePartialResponse;
    reset(): void;
}