============
do
============

{% do navigation.append('a string') %}

-----

(source
  (content)
  (control
    (statement
      (do_statement
        (expression
          (expression
            (binary_expression
              (unary_expression
                (primary_expression
                  (identifier)))))
          (expression
            (binary_expression
              (unary_expression
                (primary_expression
                  (function_call
                    (identifier)
                    (arg
                      (expression
                        (binary_expression
                          (unary_expression
                            (primary_expression
                              (literal
                                (string_literal))))))))))))))))
  (content))
