code: def format_dictfield_nodes(field_name, field, field_id, state, lineno):
      
      # Custom value type field for definition list
      valuetype_item = nodes.definition_list_item()
      valuetype_item = nodes.term(text='Value type')
      valuetype_def = nodes.definition()
      valuetype_def += make_python_xref_nodes_for_type(
          field.itemtype,
          state,
          hide_namespace=False)
      valuetype_item += valuetype_def
  
      # Definition list for key-value metadata
      dl = nodes.definition_list()
      dl += create_default_item_node(field, state)
      dl += create_field_type_item_node(field, state)
      dl += create_keytype_item_node(field, state)
      dl += valuetype_item
  
      # Doc for this field, parsed as rst
      desc_node = create_description_node(field, state)
  
      # Title for configuration field
      title = create_title_node(field_name, field, field_id, state, lineno)
  
      return [title, dl, desc_node]
docs: Create a section node that documents a DictField config field.
  
      Parameters
      ----------
      field_name : `str`
          Name of the configuration field (the attribute name of on the config
          class).
      field : ``lsst.pex.config.DictField``
          A configuration field.
      field_id : `str`
          Unique identifier for this field. This is used as the id and name of
          the section node. with a -section suffix
      state : ``docutils.statemachine.State``
          Usually the directive's ``state`` attribute.
      lineno (`int`)
          Usually the directive's ``lineno`` attribute.
  
      Returns
      -------
      ``docutils.nodes.section``
          Section containing documentation nodes for the DictField.