SOURCE_FILE@0..40
  FN@0..39
    FN_KW@0..2 "fn"
    WHITESPACE@2..3 " "
    NAME@3..6
      IDENT@3..6 "foo"
    PARAM_LIST@6..8
      L_PAREN@6..7 "("
      R_PAREN@7..8 ")"
    WHITESPACE@8..9 " "
    BLOCK_EXPR@9..39
      L_CURLY@9..10 "{"
      WHITESPACE@10..15 "\n    "
      EXPR_STMT@15..18
        TUPLE_EXPR@15..17
          L_PAREN@15..16 "("
          R_PAREN@16..17 ")"
        SEMICOLON@17..18 ";"
      WHITESPACE@18..23 "\n    "
      EXPR_STMT@23..27
        PAREN_EXPR@23..26
          L_PAREN@23..24 "("
          LITERAL@24..25
            INT_NUMBER@24..25 "1"
          R_PAREN@25..26 ")"
        SEMICOLON@26..27 ";"
      WHITESPACE@27..32 "\n    "
      EXPR_STMT@32..37
        TUPLE_EXPR@32..36
          L_PAREN@32..33 "("
          LITERAL@33..34
            INT_NUMBER@33..34 "1"
          COMMA@34..35 ","
          R_PAREN@35..36 ")"
        SEMICOLON@36..37 ";"
      WHITESPACE@37..38 "\n"
      R_CURLY@38..39 "}"
  WHITESPACE@39..40 "\n"