/**
 * Enhancement Client
 *
 * Shared SSE consumer and polling fallback for cloud TTS enhancement progress.
 * Used by both `render` and `generate --cloud` commands.
 */
import type { ApiClient } from "./api-client.js";
import type { EnhancedTimeline } from "./audio-stitching.js";
export interface SSEJobResult {
    status: "completed" | "partial" | "failed";
    enhancedCount: number;
    fallbackCount: number;
    failedCount: number;
}
export declare function consumeEnhancementSSE(apiClient: ApiClient, jobId: string, totalSegments: number): Promise<SSEJobResult>;
export declare function pollEnhancementStatus(apiClient: ApiClient, jobId: string, onProgress?: (progress: number, status: string) => void): Promise<EnhancedTimeline>;
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