import { AbstractModel } from "./AbstractModel";
/**
 * Central registry (service locator) for all AbstractModel instances in the application.
 * A single instance is created in Adminizer and shared across the entire app via `req.adminizer.modelHandler`.
 *
 * Models are registered at startup via `bindModels`, then looked up by name from controllers,
 * services, helpers, and system utilities — without importing each model directly.
 *
 * Lookup is case-insensitive: `"UserAP"`, `"userap"`, and `"USERAP"` all resolve to the same model.
 */
export declare class ModelHandler {
    private models;
    add<T>(modelName: string, modelInstance: AbstractModel<T>): void;
    /** Improved model getter, so you can write both model.get("UserAP") and model.get("userap") */
    get model(): {
        get: (modelName: string) => AbstractModel<any>;
        has: (modelName: string) => boolean;
        entries: () => MapIterator<[string, AbstractModel<any>]>;
        keys: () => MapIterator<string>;
        values: () => MapIterator<AbstractModel<any>>;
    };
    /**
     * Get all models
     */
    get all(): AbstractModel<any>[];
}