code: private void setRequestLanguages(WbGetEntitiesActionData properties) {
  		if (this.filter.excludeAllLanguages()
  				|| this.filter.getLanguageFilter() == null) {
  			return;
  		}
  		properties.languages = ApiConnection.implodeObjects(this.filter
  				.getLanguageFilter());
  	}
docs: Sets the value for the API's "languages" parameter based on the current
  settings.
  
  @param properties
  current setting of parameters