diff --git a/core/modules/workflows/src/Plugin/WorkflowTypeBase.php b/core/modules/workflows/src/Plugin/WorkflowTypeBase.php
index 34af735..66702d0 100644
--- a/core/modules/workflows/src/Plugin/WorkflowTypeBase.php
+++ b/core/modules/workflows/src/Plugin/WorkflowTypeBase.php
@@ -86,20 +86,6 @@ public function deleteTransition($transition_id) {
   /**
    * {@inheritdoc}
    */
-  public function buildStateConfigurationForm(FormStateInterface $form_state, WorkflowInterface $workflow, StateInterface $state = NULL) {
-    return [];
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function buildTransitionConfigurationForm(FormStateInterface $form_state, WorkflowInterface $workflow, TransitionInterface $transition = NULL) {
-    return [];
-  }
-
-  /**
-   * {@inheritdoc}
-   */
   public function getConfiguration() {
     return $this->configuration;
   }
diff --git a/core/modules/workflows/src/Plugin/WorkflowTypeFormBase.php b/core/modules/workflows/src/Plugin/WorkflowTypeFormBase.php
index 942c2d6..69f0e8c 100644
--- a/core/modules/workflows/src/Plugin/WorkflowTypeFormBase.php
+++ b/core/modules/workflows/src/Plugin/WorkflowTypeFormBase.php
@@ -3,6 +3,9 @@
 namespace Drupal\workflows\Plugin;
 
 use Drupal\Core\Form\FormStateInterface;
+use Drupal\workflows\StateInterface;
+use Drupal\workflows\TransitionInterface;
+use Drupal\workflows\WorkflowInterface;
 use Drupal\workflows\WorkflowTypeFormInterface;
 
 /**
@@ -27,4 +30,18 @@ public function validateConfigurationForm(array &$form, FormStateInterface $form
   public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function buildStateConfigurationForm(FormStateInterface $form_state, WorkflowInterface $workflow, StateInterface $state = NULL) {
+    return [];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildTransitionConfigurationForm(FormStateInterface $form_state, WorkflowInterface $workflow, TransitionInterface $transition = NULL) {
+    return [];
+  }
+
 }
diff --git a/core/modules/workflows/src/WorkflowTypeFormInterface.php b/core/modules/workflows/src/WorkflowTypeFormInterface.php
index 7da4bd9..d5c957b 100644
--- a/core/modules/workflows/src/WorkflowTypeFormInterface.php
+++ b/core/modules/workflows/src/WorkflowTypeFormInterface.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\workflows;
 
+use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Plugin\PluginFormInterface;
 
 /**
@@ -13,4 +14,44 @@
  * @see plugin_api
  */
 interface WorkflowTypeFormInterface extends PluginFormInterface, WorkflowTypeInterface {
+
+  /**
+   * Builds a form to be added to the Workflow state edit form.
+   *
+   * @param \Drupal\Core\Form\FormStateInterface $form_state
+   *   The form state.
+   * @param \Drupal\workflows\WorkflowInterface $workflow
+   *   The workflow the state is attached to.
+   * @param \Drupal\workflows\StateInterface|null $state
+   *   The workflow state being edited. If NULL, a new state is being added.
+   *
+   * @return array
+   *   Form elements to add to a workflow state form for customisations to the
+   *   workflow.
+   *
+   * @see \Drupal\workflows\Form\WorkflowStateAddForm::form()
+   * @see \Drupal\workflows\Form\WorkflowStateEditForm::form()
+   */
+  public function buildStateConfigurationForm(FormStateInterface $form_state, WorkflowInterface $workflow, StateInterface $state = NULL);
+
+  /**
+   * Builds a form to be added to the Workflow transition edit form.
+   *
+   * @param \Drupal\Core\Form\FormStateInterface $form_state
+   *   The form state.
+   * @param \Drupal\workflows\WorkflowInterface $workflow
+   *   The workflow the state is attached to.
+   * @param \Drupal\workflows\TransitionInterface|null $transition
+   *   The workflow transition being edited. If NULL, a new transition is being
+   *   added.
+   *
+   * @return array
+   *   Form elements to add to a workflow transition form for customisations to
+   *   the workflow.
+   *
+   * @see \Drupal\workflows\Form\WorkflowTransitionAddForm::form()
+   * @see \Drupal\workflows\Form\WorkflowTransitionEditForm::form()
+   */
+  public function buildTransitionConfigurationForm(FormStateInterface $form_state, WorkflowInterface $workflow, TransitionInterface $transition = NULL);
+
 }
diff --git a/core/modules/workflows/src/WorkflowTypeInterface.php b/core/modules/workflows/src/WorkflowTypeInterface.php
index 2412bf9..7519cb1 100644
--- a/core/modules/workflows/src/WorkflowTypeInterface.php
+++ b/core/modules/workflows/src/WorkflowTypeInterface.php
@@ -105,45 +105,6 @@ public function deleteTransition($transition_id);
   public function getInitialState(WorkflowInterface $workflow);
 
   /**
-   * Builds a form to be added to the Workflow state edit form.
-   *
-   * @param \Drupal\Core\Form\FormStateInterface $form_state
-   *   The form state.
-   * @param \Drupal\workflows\WorkflowInterface $workflow
-   *   The workflow the state is attached to.
-   * @param \Drupal\workflows\StateInterface|null $state
-   *   The workflow state being edited. If NULL, a new state is being added.
-   *
-   * @return array
-   *   Form elements to add to a workflow state form for customisations to the
-   *   workflow.
-   *
-   * @see \Drupal\workflows\Form\WorkflowStateAddForm::form()
-   * @see \Drupal\workflows\Form\WorkflowStateEditForm::form()
-   */
-  public function buildStateConfigurationForm(FormStateInterface $form_state, WorkflowInterface $workflow, StateInterface $state = NULL);
-
-  /**
-   * Builds a form to be added to the Workflow transition edit form.
-   *
-   * @param \Drupal\Core\Form\FormStateInterface $form_state
-   *   The form state.
-   * @param \Drupal\workflows\WorkflowInterface $workflow
-   *   The workflow the state is attached to.
-   * @param \Drupal\workflows\TransitionInterface|null $transition
-   *   The workflow transition being edited. If NULL, a new transition is being
-   *   added.
-   *
-   * @return array
-   *   Form elements to add to a workflow transition form for customisations to
-   *   the workflow.
-   *
-   * @see \Drupal\workflows\Form\WorkflowTransitionAddForm::form()
-   * @see \Drupal\workflows\Form\WorkflowTransitionEditForm::form()
-   */
-  public function buildTransitionConfigurationForm(FormStateInterface $form_state, WorkflowInterface $workflow, TransitionInterface $transition = NULL);
-
-  /**
    * Gets the required states of workflow type.
    *
    * This are usually configured in the workflow type annotation.