import type { default as MetaManagerInstance } from '..';
/**
 * @class ExtendMetaPropertiesMod
 */
export declare class ExtendMetaPropertiesMod {
    #private;
    /**
     * @type {MetaManager}
     */
    metaManager: MetaManagerInstance & {
        hot: {
            isRtl: () => boolean;
            [key: string]: unknown;
        };
        globalMeta: {
            meta: Record<string, unknown>;
            [key: string]: unknown;
        };
        [key: string]: unknown;
    };
    /**
     * @type {Set}
     */
    usageTracker: Set<unknown>;
    /**
     * @type {Map}
     */
    propDescriptors: Map<string, Record<string, unknown>>;
    /**
     * Initializes the modifier with a reference to the MetaManager and immediately extends the global meta with calculated property values.
     */
    constructor(metaManager: MetaManagerInstance & {
        hot: {
            isRtl: () => boolean;
            [key: string]: unknown;
        };
        globalMeta: {
            meta: Record<string, unknown>;
            [key: string]: unknown;
        };
        [key: string]: unknown;
    });
    /**
     * Extends the meta options based on the object descriptors from the `propDescriptors` list.
     */
    extendMetaProps(): void;
    /**
     * Installs the property watcher to the `propName` option and forwards getter and setter to
     * the new one.
     *
     * @param {string} propName The property to watch.
     * @param {string} origProp The property from/to the value is forwarded.
     * @param {Function} onChange The callback.
     */
    installPropWatcher(propName: string, origProp: string, onChange: (this: unknown, changedPropName: string, value: unknown, isInitialChange: boolean) => void): void;
}