import "karma"; declare module "karma" { interface CustomLauncher { /** * The `--user-data-dir` is set to a temporary directory, * but can be overridden on a custom launcher as shown below. * One reason to do this is to have a permanent Chrome user data directory inside the project directory * to be able to install plugins there (e.g. JetBrains IDE Support plugin). */ chromeDataDir?: string | undefined; } }