import { type AssistantTextPart } from '../types/message/index.js';
import type { StreamChunk } from '../types/provider/stream.js';
/** Shared aggregation for the turn loop, collected calls and bounded auxiliary inference. */
export declare class StreamTextAccumulator {
    private raw;
    private receivedCharacters;
    private parts;
    private identified;
    private snapshot;
    push(chunk: StreamChunk): void;
    get text(): string;
    /** Include commentary in auxiliary output limits even when only the final answer is selected. */
    get characters(): number;
    get textParts(): readonly AssistantTextPart[] | undefined;
}
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