import type { Context } from 'telegraf';
import type { OutputEvent, SubagentProgressMeta } from '../agent/types.js';
import type { SenderState } from './streaming.sender.js';
import type { ProgressEntry } from './streaming.preview.js';
export interface ProgressState extends SenderState {
    accumulated: string;
    progressEntries: ProgressEntry[];
    progressRounds: number;
    progressTimer: ReturnType<typeof setTimeout> | null;
    turnEnded: boolean;
    editInFlight: boolean;
    turnStartedAt: number;
}
export declare function handleProgressEvent(event: {
    progress: {
        description?: string;
        lastToolName?: string;
    };
}, state: ProgressState, progressGateOpen: boolean, progressDelayMs: number, ctx: Context, chatId: number, livePreview: () => string, setProgressGateOpen: (v: boolean) => void, clearProgressTimer: () => void): Promise<void>;
export declare function makeSubagentSink(state: SenderState, ctx: Context, chatId: number, livePreview: () => string, bumpActivity: () => void, subagentState: {
    subagentSteps: number;
    recentSubagentSteps: string[];
}): (event: OutputEvent, meta: SubagentProgressMeta) => void;