fix: bulk update retail region tags, lint

Author: glasnt

retail/interactive-tutorials/src/main/java/events/WriteUserEvent.java

@@ -20,6 +20,7 @@
 
 package events;
 
+// [START retail_write_user_event]
 import static setup.SetupCleanup.purgeUserEvent;
 
 import com.google.cloud.ServiceOptions;
@@ -78,3 +79,4 @@ public static void writeUserEvent(String defaultCatalog, String visitorId)
     purgeUserEvent(visitorId);
   }
 }
+// [END retail_write_user_event]

retail/interactive-tutorials/src/main/java/product/AddFulfillmentPlaces.java

@@ -14,10 +14,10 @@
  * limitations under the License.
  */
 
-// [START retail_add_fulfillment_places]
 
 package product;
 
+// [START retail_add_fulfillment_places]
 import static setup.SetupCleanup.createProduct;
 import static setup.SetupCleanup.deleteProduct;
 import static setup.SetupCleanup.getProduct;

retail/interactive-tutorials/src/main/java/product/DeleteProduct.java

@@ -17,9 +17,10 @@
 /*
  * Delete product from a catalog using Retail API
  */
-// [START retail_delete_product]
+
 package product;
 
+// [START retail_delete_product]
 import static setup.SetupCleanup.createProduct;
 
 import com.google.cloud.retail.v2.DeleteProductRequest;

retail/interactive-tutorials/src/main/java/product/GetProduct.java

@@ -19,6 +19,7 @@
  */
 
 package product;
+
 // [START retail_get_product]
 import static setup.SetupCleanup.createProduct;
 import static setup.SetupCleanup.deleteProduct;

retail/interactive-tutorials/src/main/java/product/ImportProductsInlineSource.java

@@ -20,6 +20,7 @@
 
 package product;
 
+// [START retail_import_products_from_inline_source]
 import com.google.api.gax.rpc.InvalidArgumentException;
 import com.google.cloud.ServiceOptions;
 import com.google.cloud.retail.v2.ColorInfo;
@@ -208,3 +209,4 @@ public static List<Product> getProducts() {
     return products;
   }
 }
+// [END retail_import_products_from_inline_source]

retail/interactive-tutorials/src/main/java/product/RemoveFulfillmentPlaces.java

@@ -16,6 +16,7 @@
 
 package product;
 
+// [START retail_remove_fulfillment_places]
 import static setup.SetupCleanup.createProduct;
 import static setup.SetupCleanup.deleteProduct;
 import static setup.SetupCleanup.getProduct;
@@ -82,3 +83,4 @@ public static void removeFulfillmentPlaces(String productName, String storeId)
     }
   }
 }
+// [END retail_remove_fulfillment_places]

retail/interactive-tutorials/src/main/java/search/SearchWithQueryExpansionSpec.java

@@ -22,6 +22,7 @@
 
 package search;
 
+// [START retail_search_for_products_with_query_expansion_specification]
 import com.google.cloud.ServiceOptions;
 import com.google.cloud.retail.v2.SearchRequest;
 import com.google.cloud.retail.v2.SearchRequest.QueryExpansionSpec;
@@ -76,3 +77,4 @@ public static void searchResponse(String defaultSearchPlacementName) throws IOEx
     }
   }
 }
+// [END retail_search_for_products_with_query_expansion_specification]