Removed pointless abstract method implementations

    @abstractmethod

    def update_settings(self, config: dict):

        """Update settings from a config dictionary"""

        with self.lock(timeout=None):

            # Apply valid config params to camera object

            for key, value in config.items():  # For each provided setting

                if hasattr(self, key):  # If the instance has a matching property

                    setattr(self, key, value)  # Set to the target value

    @abstractmethod

    def read_settings(self) -> dict:

        """Return the current settings as a dictionary"""

        return {}

    def __enter__(self):

        """Create camera on context enter."""