import type OpenAI from "openai";
import type { ImageGenCompletedEvent, ImageGenStreamEvent } from "openai/resources/images";
import type { NormalizedOpenAIImageStream } from "./image-streaming-options";
/** Open one genuine SDK stream and capture its exact terminal event. */
export declare function openOpenAIImageStream(client: OpenAI, normalized: NormalizedOpenAIImageStream, signal: AbortSignal, call: <T>(operation: string, start: () => Promise<T>) => Promise<T>): Promise<{
    events: AsyncGenerator<OpenAI.Images.ImageGenStreamEvent, any, any>;
    map(event: ImageGenStreamEvent): {
        type: "image-preview";
        image: import("@use-crux/core").Asset;
        outputIndex: number;
        sequence: number;
    } | undefined;
    completion: Promise<OpenAI.Images.ImageGenCompletedEvent>;
}>;
/** Decode the terminal SDK event into one ID-free completed image payload. */
export declare function decodeOpenAIImageStreamCompletion(raw: ImageGenCompletedEvent): import("@use-crux/core/adapter").GenerateImagePayload<OpenAI.Images.ImageGenCompletedEvent, Readonly<{
    background: "transparent" | "opaque" | "auto";
    created_at: number;
    output_format: "png" | "webp" | "jpeg";
    quality: "low" | "medium" | "high" | "auto";
    size: "1024x1024" | "1024x1536" | "1536x1024" | "auto";
    usage: ImageGenCompletedEvent.Usage;
}>, never>;