$this->t('Settings form for {{ entity_type_label|article|lower }} entity type.'), ]; $form['actions'] = [ '#type' => 'actions', 'submit' => [ '#type' => 'submit', '#value' => $this->t('Save'), ], ]; return $form; } /** * {@inheritdoc} */ public function submitForm(array &$form, FormStateInterface $form_state): void { $this->messenger()->addStatus($this->t('The configuration has been updated.')); } }