code: def get_single_node(self) -> yaml.Node:
          
          node = super().get_single_node()
          if node is not None:
              node = self.__process_node(node, type(self).document_type)
          return node
docs: Hook used when loading a single document.
  
          This is the hook we use to hook yatiml into ruamel.yaml. It is \
          called by the yaml libray when the user uses load() to load a \
          YAML document.
  
          Returns:
              A processed node representing the document.