Configure plugin.

def configure(self, options, conf):
        """
        Configure plugin.
        """
        super(LeakDetectorPlugin, self).configure(options, conf)
        if options.leak_detector_level:
            self.reporting_level = int(options.leak_detector_level)
        self.report_delta = options.leak_detector_report_delta
        self.patch_mock = options.leak_detector_patch_mock
        self.ignore_patterns = options.leak_detector_ignore_patterns
        self.save_traceback = options.leak_detector_save_traceback
        self.multiprocessing_enabled = bool(getattr(options, 'multiprocess_workers', False))