[
  (for_in_statement)
  (for_statement)
  (while_statement)
  (arrow_function)
  (function)
  (function_declaration)
  (class_declaration)
  (method_definition)
  (do_statement)
  (with_statement)
  (switch_statement)
  (switch_case)
  (switch_default)
  (import_statement)
  (if_statement)
  (try_statement)
  (catch_clause)
  (object)
  (generator_function)
  (generator_function_declaration)
] @fold