/**
 * Sharp module helper — ensures sharp is available with auto-install fallback.
 *
 * Sharp is used for image cropping, resizing, and optimization throughout
 * the Figma pipeline. This module provides a reliable way to import it,
 * with auto-install in the target project if not already available.
 */
export type SharpInstance = any;
export type SharpModule = {
    default: (input: Buffer | string) => SharpInstance;
};
/**
 * Ensure sharp is available. If not found, auto-install it in the target
 * project's node_modules (same pattern as Playwright in visual-validation.ts).
 *
 * Returns the sharp module or null if installation fails.
 */
export declare function ensureSharp(log?: (msg: string) => void, cwd?: string): Promise<SharpModule | null>;
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