class ColumnIndexPair {
  final ColumnType type;
  final int left;
  final int right;

  public ColumnIndexPair(ColumnType type, int left, int right) {
    this.type = type;
    this.left = left;
    this.right = right;
  }

  @Override
  public String toString() {<FILL_FUNCTION_BODY>}
}

    final StringBuilder sb = new StringBuilder("ColumnIndexPair{");
    sb.append("type=").append(type);
    sb.append(", left=").append(left);
    sb.append(", right=").append(right);
    sb.append('}');
    return sb.toString();
  
<no_super_class>