docs: def add_form(self, **kwargs):
          """Add the form attribute to the UNTL Python object."""
          vocabularies = kwargs.get('vocabularies', None)
          qualifier = kwargs.get('qualifier', None)
          content = kwargs.get('content', None)
          parent_tag = kwargs.get('parent_tag', None)
          superuser = kwargs.get('superuser', False)
          # Element has both the qualifier and content.
          if qualifier is not None and content is not None:
              # Create the form attribute.
              self.form = UNTL_FORM_DISPATCH[self.tag](
                  vocabularies=vocabularies,
                  qualifier_value=qualifier,
                  input_value=content,
                  untl_object=self,
                  superuser=superuser,
              )
          # Element just has a qualifier.
          elif qualifier is not None:
              # Create the form attribute.
              self.form = UNTL_FORM_DISPATCH[self.tag](
                  vocabularies=vocabularies,
                  qualifier_value=qualifier,
                  untl_object=self,
                  superuser=superuser,
              )
          # Element just has content.
          elif content is not None:
              # If the element is a child element,
              # create the form attribute.
              if parent_tag is None:
                  self.form = UNTL_FORM_DISPATCH[self.tag](
                      vocabularies=vocabularies,
                      input_value=content,
                      untl_object=self,
                      superuser=superuser,
                  )
              else:
                  # Create the form attribute.
                  self.form = UNTL_FORM_DISPATCH[self.tag](
                      vocabularies=vocabularies,
                      input_value=content,
                      untl_object=self,
                      parent_tag=parent_tag,
                      superuser=superuser,
                  )
          # Element has children and no qualifiers or content
          # or is blank (not originally in the UNTL record).
          else:
              # Element is a child element.
              if parent_tag is None:
                  # Create the form attribute.
                  self.form = UNTL_FORM_DISPATCH[self.tag](
                      vocabularies=vocabularies,
                      untl_object=self,
                      superuser=superuser,
                  )
              else:
                  # Create the form attribute.
                  self.form = UNTL_FORM_DISPATCH[self.tag](
                      vocabularies=vocabularies,
                      untl_object=self,
                      parent_tag=parent_tag,
                      superuser=superuser,
                  )