SOURCE_FILE
  CONST
    CONST_KW "const"
    WHITESPACE " "
    NAME
      IDENT "A"
    COLON ":"
    WHITESPACE " "
    TUPLE_TYPE
      L_PAREN "("
      PATH_TYPE
        PATH
          PATH_SEGMENT
            NAME_REF
              IDENT "i64"
      COMMA ","
      WHITESPACE " "
      PATH_TYPE
        PATH
          PATH_SEGMENT
            NAME_REF
              IDENT "i64"
      R_PAREN ")"
    WHITESPACE " "
    EQ "="
    WHITESPACE " "
    TUPLE_EXPR
      L_PAREN "("
      LITERAL
        INT_NUMBER "1"
      COMMA ","
      WHITESPACE " "
      LITERAL
        ATTR
          POUND "#"
          L_BRACK "["
          CFG_META
            CFG_KW "cfg"
            L_PAREN "("
            CFG_ATOM
              IDENT "test"
            R_PAREN ")"
          R_BRACK "]"
        WHITESPACE " "
        INT_NUMBER "2"
      R_PAREN ")"
    SEMICOLON ";"
  WHITESPACE "\n"
