import type { CollectionConfig } from "./collections";
/**
 * Compute the canonical string a schema version hashes.
 *
 * Exposed separately so the hashing itself can differ by environment: Node has
 * `crypto`, and callers without it can still compare canonical forms directly.
 */
export declare function canonicalSchemaPayload(collections: CollectionConfig[]): string;
/**
 * A short, non-cryptographic digest of the canonical payload.
 *
 * FNV-1a style, 64 bits, as two 32-bit halves. This is an identity, not a
 * security boundary: nothing trusts a schema version to prove anything, it only
 * answers "is this the same schema as before". A hand-rolled hash keeps this
 * module free of `node:crypto`, so the identical function runs in the browser,
 * in the CLI, and in the runtime — which is the property that actually matters.
 */
export declare function computeSchemaVersion(collections: CollectionConfig[]): string;