def _validate_required_config(self, notifier, notifier_config):
        """Validate the required configuration items are present for a notifier.

        Args:
            notifier (str): The name of the notifier key in default-config.json
            notifier_config (dict): A dictionary containing configuration for the notifications.

        Returns:
            bool: Is the notifier configured?
        """

        notifier_configured = True
        for _, val in notifier_config[notifier]['required'].items():
            if not val:
                notifier_configured = False
        return notifier_configured
Validate the required configuration items are present for a notifier.

        Args:
            notifier (str): The name of the notifier key in default-config.json
            notifier_config (dict): A dictionary containing configuration for the notifications.

        Returns:
            bool: Is the notifier configured?
        
app/notification.py