export interface StreamState {
    text: string;
    thinking: string;
    tools: Array<{
        name: string;
        status: 'pending' | 'running' | 'completed' | 'failed';
        output?: string;
    }>;
    status: 'processing' | 'completed' | 'failed';
}
export declare class CardStreamer {
    private chatId;
    private messageId;
    private finalMessageId;
    private deletedStreamingMessageId;
    private state;
    private lastUpdate;
    private throttleMs;
    private pendingUpdate;
    private finalDeliveryPromise;
    constructor(chatId: string);
    start(): Promise<void>;
    updateText(delta: string): void;
    updateThinking(delta: string): void;
    addTool(name: string): void;
    updateToolStatus(name: string, status: 'running' | 'completed' | 'failed', output?: string): void;
    setStatus(status: 'completed' | 'failed'): void;
    private scheduleUpdate;
    private doUpdate;
    private buildCard;
    close(): void;
}
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