code: public final void add(@NotNull final SerializedDataType type, final Class<?> clasz) {
          Contract.requireArgNotNull("type", type);
          Contract.requireArgNotNull("clasz", clasz);
          map.put(type, clasz);
      }
docs: Adds a new type/class combination to the registry.
  
  @param type
  Type of the data.
  @param clasz
  Class for the type.