code: def setup_form(group, type, attr_definition)
        attr_trans = single_attribute_translator.new(
          source: @source,
          form: @form,
          group: group,
          type: type,
          attribute_definition: attr_definition
        )
  
        attr_trans.add_associations_to_form
      end
docs: Sets up translation state instance to hold various attributes that need to be passed around,
   and calls helpers to build the necessary associations and attach them to the form.