code: def make_child_of(self, chunk):
          
          if self.is_mapping():
              for key, value in self.contents.items():
                  self.key(key, key).pointer.make_child_of(chunk.pointer)
                  self.val(key).make_child_of(chunk)
          elif self.is_sequence():
              for index, item in enumerate(self.contents):
                  self.index(index).make_child_of(chunk)
          else:
              self.pointer.make_child_of(chunk.pointer)
docs: Link one YAML chunk to another.
  
          Used when inserting a chunk of YAML into another chunk.