code: private boolean appendIn(StringBuilder builder, CQLTranslator translator, String columnName) {
          boolean isPresent;
          isPresent = true;
          translator.ensureCase(builder, columnName, false);
          builder.append(" IN ");
          return isPresent;
      }
docs: Append in.
  
  @param builder
  the builder
  @param translator
  the translator
  @param columnName
  the column name
  @return true, if successful