import { SimpleChanges } from '@angular/core';
/**
 * Utility class to assist with pulling specific values from a `SimpleChanges` object.
 */
export declare class NgChangeObjectValueParser {
    /**
     * Function to parse previousValue from triggered by changes on ngOnChange
     *
     * @param changes - SimpleChanges
     * @param path - string
     * @returns lowest layer value or changes object itself when path cannot be parsed
     *
     * @example
     * valueParser.getOldValue(myChanges, 'my.path')
     */
    static getOldValue(changes: SimpleChanges, path: string): any;
    /**
     * Function to parse currentValue from triggered by changes on ngOnChange
     *
     * @param changes - SimpleChanges
     * @param path - string
     * @returns lowest layer value or changes object itself when path cannot be parsed
     *
     * @example
     * valueParser.getNewValue(myChanges, 'my.path')
     */
    static getNewValue(changes: SimpleChanges, path: string): any;
    /**
     * Function to parse path to get keys for each layer
     *
     * @param path - string
     * @returns an array of two elements, one being an array of all the keys except first one, one being the first key
     *
     * @example
     * valueParser.parsePath('my.path') // Returns: [['my'], 'path']
     */
    static parsePath(path: string): [string[], string];
}