import type { ImageContent, TextContent } from "../types";
export declare const NON_VISION_IMAGE_PLACEHOLDER = "[image omitted: model does not support vision]";
export declare function partitionVisionContent(content: ReadonlyArray<TextContent | ImageContent>, supportsImages: boolean): {
    textBlocks: TextContent[];
    imageBlocks: ImageContent[];
    omittedImages: boolean;
};
export declare function joinTextWithImagePlaceholder(text: string, omittedImages: boolean): string;