diff --git a/src/CloudSearch/QuerySuggestion.php b/src/CloudSearch/QuerySuggestion.php
index de2f1b6ef8b..db33b9d380a 100644
--- a/src/CloudSearch/QuerySuggestion.php
+++ b/src/CloudSearch/QuerySuggestion.php
@@ -19,6 +19,73 @@
 
 class QuerySuggestion extends \Google\Model
 {
+  /**
+   * Source corpus is unspecified.
+   */
+  public const SOURCE_CORPUS_SOURCE_CORPUS_UNSPECIFIED = 'SOURCE_CORPUS_UNSPECIFIED';
+  /**
+   * Source corpus is Gmail.
+   */
+  public const SOURCE_CORPUS_GMAIL = 'GMAIL';
+  /**
+   * Source corpus is Drive.
+   */
+  public const SOURCE_CORPUS_DRIVE = 'DRIVE';
+  /**
+   * Source corpus is Chat.
+   */
+  public const SOURCE_CORPUS_CHAT = 'CHAT';
+  /**
+   * Source corpus is Calendar.
+   */
+  public const SOURCE_CORPUS_CALENDAR = 'CALENDAR';
+  /**
+   * Last query time of the suggestion for query history suggestions.
+   *
+   * @var string
+   */
+  public $lastQueryTime;
+  /**
+   * Source corpus of the suggestion.
+   *
+   * @var string
+   */
+  public $sourceCorpus;
+
+  /**
+   * Last query time of the suggestion for query history suggestions.
+   *
+   * @param string $lastQueryTime
+   */
+  public function setLastQueryTime($lastQueryTime)
+  {
+    $this->lastQueryTime = $lastQueryTime;
+  }
+  /**
+   * @return string
+   */
+  public function getLastQueryTime()
+  {
+    return $this->lastQueryTime;
+  }
+  /**
+   * Source corpus of the suggestion.
+   *
+   * Accepted values: SOURCE_CORPUS_UNSPECIFIED, GMAIL, DRIVE, CHAT, CALENDAR
+   *
+   * @param self::SOURCE_CORPUS_* $sourceCorpus
+   */
+  public function setSourceCorpus($sourceCorpus)
+  {
+    $this->sourceCorpus = $sourceCorpus;
+  }
+  /**
+   * @return self::SOURCE_CORPUS_*
+   */
+  public function getSourceCorpus()
+  {
+    return $this->sourceCorpus;
+  }
 }
 
 // Adding a class alias for backwards compatibility with the previous class name.