Return a list of lists of strings, where each inner list of strings
        represents a type + FQN path of a resource configuration that is not
        used.

def get_unused_resource_config_paths(self, resource_fqns, disabled):
        """Return a list of lists of strings, where each inner list of strings
        represents a type + FQN path of a resource configuration that is not
        used.
        """
        disabled_fqns = frozenset(tuple(fqn) for fqn in disabled)
        resource_config_paths = self.get_resource_config_paths()
        unused_resource_config_paths = []
        for resource_type, config_paths in resource_config_paths.items():
            used_fqns = resource_fqns.get(resource_type, frozenset())
            fqns = used_fqns | disabled_fqns

            for config_path in config_paths:
                if not _is_config_used(config_path, fqns):
                    unused_resource_config_paths.append(
                        (resource_type,) + config_path
                    )
        return unused_resource_config_paths