public com.google.protobuf.ByteString getDriveNameBytes() {
      java.lang.Object ref = "";
      if (driveSourceCase_ == 7) {
        ref = driveSource_;
      }
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        if (driveSourceCase_ == 7) {
          driveSource_ = b;
        }
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
<pre>
The name of the drive to download from.
</pre>

<code>string drive_name = 7;</code>

@return The bytes for driveName.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/SharePointSources.java