import type { GalileoLogger } from '../galileo-logger';
import type { StreamingMetrics } from './metrics';
import type { LlmSpanAllowedInputType, LlmSpanAllowedOutputType } from '../../types/logging/step.types';
import type { JsonObject } from '../../types/base.types';
/**
 * Configuration for streaming finalization
 */
export interface StreamingFinalizerConfig {
    logger: GalileoLogger;
    metrics: StreamingMetrics;
    requestData: {
        messages?: LlmSpanAllowedInputType;
        model?: string;
        metadata?: Record<string, string>;
        name?: string;
        tools?: JsonObject[];
        temperature?: number;
    };
    shouldCompleteTrace: boolean;
}
/**
 * Handles finalization of streaming spans including logging and trace conclusion
 */
export declare class StreamingFinalizer {
    private logger;
    private metrics;
    private requestData;
    private shouldCompleteTrace;
    constructor(config: StreamingFinalizerConfig);
    /**
     * Finalize the streaming span with all collected metrics
     * @param output The final output from the stream
     * @param statusCode Optional status code (defaults to 200)
     */
    finalize(output: LlmSpanAllowedOutputType, statusCode?: number): void;
}