================================================================================
top level object
================================================================================

{
  "foo": "bar"
}

--------------------------------------------------------------------------------

(config_file
  (object
    (object_start)
    (object_elem
      (expression
        (literal_value
          (string_lit
            (quoted_template_start)
            (template_literal)
            (quoted_template_end))))
      (expression
        (literal_value
          (string_lit
            (quoted_template_start)
            (template_literal)
            (quoted_template_end)))))
    (object_end)))