diff --git a/advanced/adsense.gs b/advanced/adsense.gs
index 3077fb1dc..3e4610927 100644
--- a/advanced/adsense.gs
+++ b/advanced/adsense.gs
@@ -21,13 +21,13 @@ function listAccounts() {
   let pageToken;
   do {
     const response = AdSense.Accounts.list({pageToken: pageToken});
-    if (response.accounts) {
-      for (const account of response.accounts) {
-        Logger.log('Found account with resource name "%s" and display name "%s".',
-            account.name, account.displayName);
-      }
-    } else {
+    if (!response.accounts) {
       Logger.log('No accounts found.');
+      return;
+    }
+    for (const account of response.accounts) {
+      Logger.log('Found account with resource name "%s" and display name "%s".',
+          account.name, account.displayName);
     }
     pageToken = response.nextPageToken;
   } while (pageToken);
@@ -47,15 +47,15 @@ function listAdClients(accountName) {
     const response = AdSense.Accounts.Adclients.list(accountName, {
       pageToken: pageToken
     });
-    if (response.adClients) {
-      for (const adClient of response.adClients) {
-        Logger.log('Found ad client for product "%s" with resource name "%s".',
-            adClient.productCode, adClient.name);
-        Logger.log('Reporting dimension ID: %s',
-            adClient.reportingDimensionId ?? 'None');
-      }
-    } else {
+    if (!response.adClients) {
       Logger.log('No ad clients found for this account.');
+      return;
+    }
+    for (const adClient of response.adClients) {
+      Logger.log('Found ad client for product "%s" with resource name "%s".',
+          adClient.productCode, adClient.name);
+      Logger.log('Reporting dimension ID: %s',
+          adClient.reportingDimensionId ?? 'None');
     }
     pageToken = response.nextPageToken;
   } while (pageToken);
@@ -75,13 +75,13 @@ function listAdUnits(adClientName) {
       pageSize: 50,
       pageToken: pageToken
     });
-    if (response.adUnits) {
-      for (const adUnit of response.adUnits) {
-        Logger.log('Found ad unit with resource name "%s" and display name "%s".',
-            adUnit.name, adUnit.displayName);
-      }
-    } else {
+    if (!response.adUnits) {
       Logger.log('No ad units found for this ad client.');
+      return;
+    }
+    for (const adUnit of response.adUnits) {
+      Logger.log('Found ad unit with resource name "%s" and display name "%s".',
+          adUnit.name, adUnit.displayName);
     }
 
     pageToken = response.nextPageToken;
@@ -114,22 +114,22 @@ function generateReport(accountName, adClientReportingDimensionId) {
     orderBy: ['+DATE']
   });
 
-  if (report.rows) {
-    const spreadsheet = SpreadsheetApp.create('AdSense Report');
-    const sheet = spreadsheet.getActiveSheet();
+  if (!report.rows) {
+    Logger.log('No rows returned.');
+    return;
+  }
+  const spreadsheet = SpreadsheetApp.create('AdSense Report');
+  const sheet = spreadsheet.getActiveSheet();
 
-    // Append the headers.
-    sheet.appendRow(report.headers.map((header) => header.name));
+  // Append the headers.
+  sheet.appendRow(report.headers.map((header) => header.name));
 
-    // Append the results.
-    sheet.getRange(2, 1, report.rows.length, report.headers.length)
-        .setValues(report.rows.map((row) => row.cells.map((cell) => cell.value)));
+  // Append the results.
+  sheet.getRange(2, 1, report.rows.length, report.headers.length)
+      .setValues(report.rows.map((row) => row.cells.map((cell) => cell.value)));
 
-    Logger.log('Report spreadsheet created: %s',
-        spreadsheet.getUrl());
-  } else {
-    Logger.log('No rows returned.');
-  }
+  Logger.log('Report spreadsheet created: %s',
+      spreadsheet.getUrl());
 }
 
 /**
diff --git a/advanced/classroom.gs b/advanced/classroom.gs
index c23ed97fc..480cdce1b 100644
--- a/advanced/classroom.gs
+++ b/advanced/classroom.gs
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// [START classroom_list_courses]
+// [START apps_script_classroom_list_courses]
 /**
  * Lists 10 course names and IDs.
  */
@@ -41,4 +41,4 @@ function listCourses() {
     Logger.log('Failed with error %s', err.message);
   }
 }
-// [END classroom_list_courses]
+// [END apps_script_classroom_list_courses]
diff --git a/advanced/slides.gs b/advanced/slides.gs
index 9219b0669..526230abe 100644
--- a/advanced/slides.gs
+++ b/advanced/slides.gs
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-// [START slides_create_presentation]
+// [START apps_script_slides_create_presentation]
 /**
  * Create a new presentation.
  * @return {string} presentation Id.
@@ -31,9 +31,9 @@ function createPresentation() {
     Logger.log('Failed with error %s', e.message);
   }
 }
-// [END slides_create_presentation]
+// [END apps_script_slides_create_presentation]
 
-// [START slides_create_slide]
+// [START apps_script_slides_create_slide]
 /**
  * Create a new slide.
  * @param {string} presentationId The presentation to add the slide to.
@@ -63,9 +63,9 @@ function createSlide(presentationId) {
     Logger.log('Failed with error %s', e.message);
   }
 }
-// [END slides_create_slide]
+// [END apps_script_slides_create_slide]
 
-// [START slides_read_page]
+// [START apps_script_slides_read_page]
 /**
  * Read page element IDs.
  * @param {string} presentationId The presentation to read from.
@@ -86,9 +86,9 @@ function readPageElementIds(presentationId, pageId) {
     Logger.log('Failed with error %s', e.message);
   }
 }
-// [END slides_read_page]
+// [END apps_script_slides_read_page]
 
-// [START slides_add_text_box]
+// [START apps_script_slides_add_text_box]
 /**
  * Add a new text box with text to a page.
  * @param {string} presentationId The presentation ID.
@@ -144,9 +144,9 @@ function addTextBox(presentationId, pageId) {
     Logger.log('Failed with error %s', e.message);
   }
 }
-// [END slides_add_text_box]
+// [END apps_script_slides_add_text_box]
 
-// [START slides_format_shape_text]
+// [START apps_script_slides_format_shape_text]
 /**
  * Format the text in a shape.
  * @param {string} presentationId The presentation ID.
@@ -188,9 +188,9 @@ function formatShapeText(presentationId, shapeId) {
     Logger.log('Failed with error %s', e.message);
   }
 }
-// [END slides_format_shape_text]
+// [END apps_script_slides_format_shape_text]
 
-// [START slides_save_thumbnail]
+// [START apps_script_slides_save_thumbnail]
 /**
  * Saves a thumbnail image of the current Google Slide presentation in Google Drive.
  * Logs the image URL.
@@ -215,4 +215,4 @@ function saveThumbnailImage(i) {
     Logger.log('Failed with error %s', e.message);
   }
 }
-// [END slides_save_thumbnail]
+// [END apps_script_slides_save_thumbnail]
diff --git a/apps-script/execute/target.js b/apps-script/execute/target.js
index d0d7b67b8..aa79e72fc 100644
--- a/apps-script/execute/target.js
+++ b/apps-script/execute/target.js
@@ -1,3 +1,18 @@
+/**
+ * Copyright Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 // [START apps_script_api_execute]
 /**
  * Return the set of folder names contained in the user's root folder as an