private void ensureSharePointSourcesIsMutable() {
      if (!((bitField0_ & 0x00000001) != 0)) {
        sharePointSources_ =
            new java.util.ArrayList<
                com.google.cloud.vertexai.api.SharePointSources.SharePointSource>(
                sharePointSources_);
        bitField0_ |= 0x00000001;
      }
    }
<pre>
The SharePointSources to pass to ImportRagFiles.
</pre>

Protobuf type {@code google.cloud.vertexai.v1.SharePointSources}
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/SharePointSources.java