import type { RpcEvent } from "./rpc-types.ts";
export declare class RpcEventBuffer {
    private readonly updates;
    private timer;
    private readonly emit;
    constructor(emit: (event: RpcEvent) => void);
    /**
     * Coalescing keeps only the last event per key, so a type is coalescible
     * only when each event 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.
     */
    enqueue(event: RpcEvent): void;
    flush(): void;
    dispose(): void;
}
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