/**
 * Image description utilities.
 *
 * The Teams API provides image bytes; this module sends those bytes to an
 * OpenAI-compatible vision endpoint when the user has configured credentials.
 */
export interface DescribeImageOptions {
    imageData: Buffer;
    contentType: string;
    prompt?: string;
    environment?: NodeJS.ProcessEnv;
    fetchFunction?: typeof fetch;
}
export interface ImageDescriptionResult {
    provider: "openai-compatible";
    model: string;
    description: string;
}
export declare function describeImageWithOpenAiCompatibleVision(options: DescribeImageOptions): Promise<ImageDescriptionResult>;
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