docs: public <T> void updateChildEntry(Class<?> parentClass, String parentId,
  			T obj, String objId, NameValuePair... params) throws RedmineException {
  		final EntityConfig<T> config = getConfig(obj.getClass());
  		URI uri = getURIConfigurator().getChildIdURI(parentClass, parentId, obj.getClass(), objId, params);
  		final HttpPut http = new HttpPut(uri);
  		final String body = RedmineJSONBuilder.toSimpleJSON(config.singleObjectName, obj, config.writer);
  		setEntity(http, body);
  		send(http);
  	}