/**
 * Anchors a value on the realm instead of on a module.
 *
 * Two copies of `@venizia/ignis-kernel` can end up in one install without either package changing:
 * `@venizia/ignis` and `@venizia/ignis-connectors` each pin a range, and the day those ranges stop
 * intersecting a package manager installs a nested second copy rather than failing. Module-level
 * statics then split in two, and nothing throws - `@repository` writes into one `datasourceModels`
 * map while `discoverSchema()` reads the other, `buildSchema()` returns `{}`, and every query fails
 * for a reason that points nowhere near the cause.
 *
 * `Symbol.for` is keyed on a global registry per realm, so both copies resolve the same symbol and
 * therefore the same instance. A browser tab and its Worker are separate realms and still get one
 * registry each, which is correct - they run separate applications.
 */
export declare class SingletonRealm {
    private static readonly ANCHOR_PREFIX;
    /**
     * Anchors are memoized, not the values: an anchored value is created once and only ever mutated,
     * so re-deriving its symbol per call buys nothing. The audit enrichers reach this twice per
     * inserted row.
     */
    private static readonly anchors;
    /** The realm's own singleton for `key`, created on first call and shared by every copy of this package. */
    static resolve<T>(opts: {
        key: string;
        create: () => T;
    }): T;
    private static anchorFor;
}
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