import { type LLMToolResult, type LLMToolResultImage } from '../../LLMService.typedefs';
/**
 * The shape every provider's tool loop works with internally: a text
 * `content` (always present) plus an `images` array (possibly empty).
 */
export interface NormalizedToolResult {
    content: string;
    images: LLMToolResultImage[];
}
/**
 * Collapses the two possible tool-result shapes into a single normalized
 * form. A plain `string` becomes text-only; a structured result keeps its
 * text and images (defaulting `images` to an empty array).
 */
export declare function normalizeToolResult(raw: LLMToolResult): NormalizedToolResult;