import { FoundationContext } from '../types';
/**
 * Calculate the CRC32 checksum for given content and return base64 encoded
 * checksum. Environment-specific dependencies (`readFile`, `toBase64`) are
 * injected via the {@link FoundationContext} so the foundation layer stays
 * free of any environment-discriminating logic.
 */
export declare const calculateContentCRC32: (ctx: FoundationContext, content: Blob | string | ArrayBuffer | ArrayBufferView, seed?: number) => Promise<string>;