/**
 * Gets executed just before initializing the webdriver session and test framework. It allows you
 * to manipulate configurations depending on the capability or spec.
 * @param {Object} config wdio configuration object
 * @param {Array.<Object>} capabilities list of capabilities details
 * @param {Array.<String>} specs List of spec file paths that are to be run
 */
export default function (config: Record<string, any>, capabilities: object[], specs: string[]): Promise<void>;