docs: public static FileSystem connect(Properties configuration) throws IOException {
  	String host = configuration.getProperty("transformator.dfs.host");
  	String port = configuration.getProperty("transformator.dfs.port");
  	String hdfsUrl = "hdfs://" + host + ":" + port;
  	Configuration conf = new Configuration();
  	conf.set("fs.defaultFS", hdfsUrl);
  	return FileSystem.get(conf);
      }