/**
 * Pure helpers extracted from the docmost-sync Phase-0 idempotency harness
 * (`src/roundtrip.ts`). Only the IO-free comparison utilities are vendored —
 * the CLI scaffold (`--fixture`/`--page`/`--corpus`, `loadSettings`, the
 * `DocmostClient` live path and `process.exit`) is NOT vendored (plan §2.1:
 * the roundtrip harness moves into the package's tests, not the engine).
 */
/**
 * Recursively strip every `attrs.id` from a ProseMirror node tree. Block ids
 * are regenerated by `markdownToProseMirror` (SPEC §11), so they must be
 * ignored when comparing the semantic shape of two documents. Returns a NEW
 * tree; the input is not mutated.
 */
export declare function stripBlockIds(node: any): any;
/**
 * Find the first divergence between two values via a recursive deep compare.
 * Returns a short path + the two differing values, or null if they are equal.
 */
export declare function firstDivergence(a: any, b: any, path?: string): {
    path: string;
    a: any;
    b: any;
} | null;