/**
 * The global meta object is a root of all default settings, which are recognizable by Handsontable.
 * Other layers are inherited from this object. Adding, removing, or changing property in that
 * object has a direct reflection to all layers such as: TableMeta, ColumnMeta, or CellMeta layers.
 *
 * +-------------+.
 * │ GlobalMeta  │
 * │ (prototype) │
 * +-------------+\
 *       │         \
 *       │          \
 *      \│/         _\|
 * +-------------+    +-------------+.
 * │ TableMeta   │    │ ColumnMeta  │
 * │ (instance)  │    │ (prototype) │
 * +-------------+    +-------------+.
 *                         │
 *                         │
 *                        \│/
 *                    +-------------+.
 *                    │  CellMeta   │
 *                    │ (instance)  │
 *                    +-------------+.
 */
export default class GlobalMeta {
    /**
     * An alias for the constructor. Necessary for inheritance for creating new layers.
     *
     * @type {TableMeta}
     */
    metaCtor: {
        new (): {};
    };
    /**
     * Main object (prototype of the internal TableMeta class), holder for all default settings.
     *
     * @type {object}
     */
    meta: Record<string, unknown>;
    /**
     * Initializes the global meta layer, populates the meta prototype with schema defaults, and attaches the Handsontable instance reference.
     */
    constructor(hot: unknown);
    /**
     * Gets constructor of the global meta object. Necessary for inheritance for creating the next meta layers.
     *
     * @returns {Function}
     */
    getMetaConstructor(): {
        new (): {};
    };
    /**
     * Gets settings object for this layer.
     *
     * @returns {object}
     */
    getMeta(): Record<string, unknown>;
    /**
     * Updates global settings object by merging settings with the current state.
     *
     * @param {object} settings An object to merge with.
     */
    updateMeta(settings: Record<string, unknown>): void;
}