import type { RpcOutput, RpcOutputRecord } from "./rpc-responses.ts";
export declare function serializeRpcOutputRecord(record: RpcOutputRecord): string;
export declare class RpcOutputBuffer {
    private readonly updates;
    private timer;
    readonly output: RpcOutput;
    dispose(): void;
    /**
     * Coalescing keeps only the last record per key, so a type is coalescible
     * only when each record supersedes the previous one. `tool_execution_update`
     * qualifies: each carries the full `partialResult` so far, keyed per call.
     *
     * `message_update` does not. It carries an `assistantMessageEvent` delta,
     * and dropping a delta drops that text permanently, so it takes the
     * pass-through path below.
     */
    private enqueue;
    private flush;
}
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