@java.lang.Override
      public boolean hasSharepointFolderId() {
        return folderSourceCase_ == 6;
      }
<pre>
The ID of the SharePoint folder to download from.
</pre>

<code>string sharepoint_folder_id = 6;</code>

@return Whether the sharepointFolderId field is set.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/SharePointSources.java