docs: public static EncodingManager create(FlagEncoderFactory factory, String ghLoc) {
          Directory dir = new RAMDirectory(ghLoc, true);
          StorableProperties properties = new StorableProperties(dir);
          if (!properties.loadExisting())
              throw new IllegalStateException("Cannot load properties to fetch EncodingManager configuration at: "
                      + dir.getLocation());
  
          // check encoding for compatibility
          properties.checkVersions(false);
          String acceptStr = properties.get("graph.flag_encoders");
  
          if (acceptStr.isEmpty())
              throw new IllegalStateException("EncodingManager was not configured. And no one was found in the graph: "
                      + dir.getLocation());
  
          int bytesForFlags = 4;
          try {
              bytesForFlags = Integer.parseInt(properties.get("graph.bytes_for_flags"));
          } catch (NumberFormatException ex) {
          }
          return createBuilder(factory, acceptStr, bytesForFlags).build();
      }