- **args** [string, optional] - Allows you to pass command line arguments to Atoum.
- **config** [string, optional] - Path to an Atoum configuration file.
- **directory** [string, optional] - Path in which to run Atom (defaults to the build root).
- **executable** [string, optional] - Allows you to provide a path to the Atom binary (defaults to PHPCI root, vendor/bin, or a system-provided Atom binary).