code: public void sendUserEvent(KeyValueCollection userData, String callUuid) throws WorkspaceApiException {
          this.sendUserEvent(userData, callUuid, null);
      }
docs: Send EventUserEvent to T-Server with the provided attached data. For details about EventUserEvent, refer to the
  [*Genesys Events and Models Reference Manual*](https://docs.genesys.com/Documentation/System/Current/GenEM/SpecialEvents).
  @param userData The data to send. This is an array of objects with the properties key, type, and value.
  @param callUuid The universally unique identifier associated with the call. (optional)