@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    if (valueCase_ == 1) {
      output.writeInt64(1, (long) ((java.lang.Long) value_));
    }
    if (valueCase_ == 2) {
      output.writeFloat(2, (float) ((java.lang.Float) value_));
    }
    if (valueCase_ == 3) {
      output.writeBool(3, (boolean) ((java.lang.Boolean) value_));
    }
    if (valueCase_ == 4) {
      output.writeBytes(4, (com.google.protobuf.ByteString) value_);
    }
    getUnknownFields().writeTo(output);
  }
<pre>
string.
</pre>

<code>bytes s = 4;</code>

@return The s.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/AttributeValue.java