--- /dev/null
+<?php
+
+namespace Drupal\{{ machine_name }};
+
+use Drupal\Core\Entity\ContentEntityInterface;
+{% if author_base_field %}
+use Drupal\user\EntityOwnerInterface;
+{% endif %}
+{% if changed_base_field %}
+use Drupal\Core\Entity\EntityChangedInterface;
+{% endif %}
+
+/**
+ * Provides an interface defining {{ entity_type_label|article|lower }} entity type.
+ */
+interface {{ class_prefix }}Interface extends ContentEntityInterface{% if author_base_field %}, EntityOwnerInterface{% endif %}{% if changed_base_field %}, EntityChangedInterface{% endif %} {
+
+{% if title_base_field %}
+ /**
+ * Gets the {{ entity_type_label|lower }} title.
+ *
+ * @return string
+ * Title of the {{ entity_type_label|lower }}.
+ */
+ public function getTitle();
+
+ /**
+ * Sets the {{ entity_type_label|lower }} title.
+ *
+ * @param string $title
+ * The {{ entity_type_label|lower }} title.
+ *
+ * @return \Drupal\{{ machine_name }}\{{ class_prefix }}Interface
+ * The called {{ entity_type_label|lower }} entity.
+ */
+ public function setTitle($title);
+
+{% endif %}
+{% if created_base_field %}
+ /**
+ * Gets the {{ entity_type_label|lower }} creation timestamp.
+ *
+ * @return int
+ * Creation timestamp of the {{ entity_type_label|lower }}.
+ */
+ public function getCreatedTime();
+
+ /**
+ * Sets the {{ entity_type_label|lower }} creation timestamp.
+ *
+ * @param int $timestamp
+ * The {{ entity_type_label|lower }} creation timestamp.
+ *
+ * @return \Drupal\{{ machine_name }}\{{ class_prefix }}Interface
+ * The called {{ entity_type_label|lower }} entity.
+ */
+ public function setCreatedTime($timestamp);
+
+{% endif %}
+{% if status_base_field %}
+ /**
+ * Returns the {{ entity_type_label|lower }} status.
+ *
+ * @return bool
+ * TRUE if the {{ entity_type_label|lower }} is enabled, FALSE otherwise.
+ */
+ public function isEnabled();
+
+ /**
+ * Sets the {{ entity_type_label|lower }} status.
+ *
+ * @param bool $status
+ * TRUE to enable this {{ entity_type_label|lower }}, FALSE to disable.
+ *
+ * @return \Drupal\{{ machine_name }}\{{ class_prefix }}Interface
+ * The called {{ entity_type_label|lower }} entity.
+ */
+ public function setStatus($status);
+
+{% endif %}
+}