docs: def register(self, name, namespace):
          """Register a new namespace with the Configuration object.
  
          Args:
              name (str): The name of the section/namespace.
              namespace (namespace.Namespace): The Namespace object to store.
  
          Raises:
              TypeError: If the namespace is not a Namespace object.
              ValueError: If the namespace is already registered.
          """
          if name in self._NAMESPACES:
  
              raise ValueError("Namespace {0} already exists.".format(name))
  
          if not isinstance(namespace, ns.Namespace):
  
              raise TypeError("Namespaces must be of type Namespace.")
  
          self._NAMESPACES[name] = namespace