@Override
    public Result join(@NotNull Request req) {
      final PyStatement leftStmt = PsiTreeUtil.getParentOfType(req.leftExpr, PyStatement.class);
      if (leftStmt != null) {
        final PyStatement rightStmt = PsiTreeUtil.getParentOfType(req.rightExpr, PyStatement.class);
        if (rightStmt != null && rightStmt != leftStmt) {
          // TODO: look at settings for space after semicolon
          return new Result("; ", 1); // cursor after semicolon
        }
      }
      return null;
    }
@Override
    public Result join(@NotNull Request req)