import type { ModelResponse, PartialModelResponse } from "./types.ts";
/**
 * Manages the accumulation and merging of content deltas for streaming responses
 */
export declare class StreamAccumulator {
    #private;
    /**
     * Adds a chunk of content deltas to the accumulator
     */
    addPartial(partial: PartialModelResponse): void;
    /**
     * Computes the final response from accumulated deltas
     */
    computeResponse(): ModelResponse;
    /**
     * Gets the number of accumulated parts
     */
    get size(): number;
    /**
     * Checks if the accumulator has any data
     */
    get isEmpty(): boolean;
}