SOURCE_FILE
  FN
    FN_KW "fn"
    WHITESPACE " "
    NAME
      IDENT "foo"
    PARAM_LIST
      L_PAREN "("
      R_PAREN ")"
    WHITESPACE " "
    BLOCK_EXPR
      STMT_LIST
        L_CURLY "{"
        WHITESPACE " "
        INCLUDE_BYTES_EXPR
          BUILTIN_KW "builtin"
          WHITESPACE " "
          POUND "#"
          WHITESPACE " "
          INCLUDE_BYTES_KW "include_bytes"
        WHITESPACE " "
        R_CURLY "}"
  WHITESPACE "\n"
