docs: public JsonNode sendJsonRequest(String requestMethod, Map<String,String> parameters) throws IOException, MediaWikiApiErrorException {
  		parameters.put(ApiConnection.PARAM_FORMAT, "json");
  		if (loggedIn) {
  			parameters.put(ApiConnection.ASSERT_PARAMETER, "user");
  		}
  		try (InputStream response = sendRequest(requestMethod, parameters)) {
  			JsonNode root = this.mapper.readTree(response);
  			this.checkErrors(root);
  			this.logWarnings(root);
  			return root;
  		}
  	}