def METHOD_NAME(self):
    """This function is called by the parent dialog window when the user selects to save the settings."""
    if self.path is None:  # Delete requested, so remove the current path from sys.path, if present
        if self.config_manager.userCodeDir is not None:
            sys.path.remove(self.config_manager.userCodeDir)
            self.config_manager.userCodeDir = None
            logger.info("Removed custom module search path from configuration and sys.path.")
    else:
        if self.path != self.config_manager.userCodeDir:
            if self.config_manager.userCodeDir is not None:
                sys.path.remove(self.config_manager.userCodeDir)
            sys.path.append(self.path)
            self.config_manager.userCodeDir = self.path
            logger.info("Saved custom module search path and added it to sys.path: {}".format(self.path))