code: public void setIdGenerators(Set<String> idGenerators) {
      RenamingMap gen = new UniqueRenamingToken();
      ImmutableMap.Builder<String, RenamingMap> builder = ImmutableMap.builder();
      for (String name : idGenerators) {
         builder.put(name, gen);
      }
      this.idGenerators = builder.build();
    }
docs: Sets the id generators to replace.