SOURCE_FILE@0..94
  FN@0..93
    FN_KW@0..2 "fn"
    WHITESPACE@2..3 " "
    NAME@3..7
      IDENT@3..7 "main"
    PARAM_LIST@7..9
      L_PAREN@7..8 "("
      R_PAREN@8..9 ")"
    WHITESPACE@9..10 " "
    BLOCK_EXPR@10..93
      L_CURLY@10..11 "{"
      WHITESPACE@11..16 "\n    "
      LET_STMT@16..36
        LET_KW@16..19 "let"
        WHITESPACE@19..20 " "
        TUPLE_PAT@20..30
          L_PAREN@20..21 "("
          IDENT_PAT@21..22
            NAME@21..22
              IDENT@21..22 "a"
          COMMA@22..23 ","
          WHITESPACE@23..24 " "
          IDENT_PAT@24..25
            NAME@24..25
              IDENT@24..25 "b"
          COMMA@25..26 ","
          WHITESPACE@26..27 " "
          REST_PAT@27..29
            DOT2@27..29 ".."
          R_PAREN@29..30 ")"
        WHITESPACE@30..31 " "
        EQ@31..32 "="
        WHITESPACE@32..33 " "
        TUPLE_EXPR@33..35
          L_PAREN@33..34 "("
          R_PAREN@34..35 ")"
        SEMICOLON@35..36 ";"
      WHITESPACE@36..41 "\n    "
      LET_STMT@41..55
        LET_KW@41..44 "let"
        WHITESPACE@44..45 " "
        TUPLE_PAT@45..49
          L_PAREN@45..46 "("
          IDENT_PAT@46..47
            NAME@46..47
              IDENT@46..47 "a"
          COMMA@47..48 ","
          R_PAREN@48..49 ")"
        WHITESPACE@49..50 " "
        EQ@50..51 "="
        WHITESPACE@51..52 " "
        TUPLE_EXPR@52..54
          L_PAREN@52..53 "("
          R_PAREN@53..54 ")"
        SEMICOLON@54..55 ";"
      WHITESPACE@55..60 "\n    "
      LET_STMT@60..74
        LET_KW@60..63 "let"
        WHITESPACE@63..64 " "
        TUPLE_PAT@64..68
          L_PAREN@64..65 "("
          REST_PAT@65..67
            DOT2@65..67 ".."
          R_PAREN@67..68 ")"
        WHITESPACE@68..69 " "
        EQ@69..70 "="
        WHITESPACE@70..71 " "
        TUPLE_EXPR@71..73
          L_PAREN@71..72 "("
          R_PAREN@72..73 ")"
        SEMICOLON@73..74 ";"
      WHITESPACE@74..79 "\n    "
      LET_STMT@79..91
        LET_KW@79..82 "let"
        WHITESPACE@82..83 " "
        TUPLE_PAT@83..85
          L_PAREN@83..84 "("
          R_PAREN@84..85 ")"
        WHITESPACE@85..86 " "
        EQ@86..87 "="
        WHITESPACE@87..88 " "
        TUPLE_EXPR@88..90
          L_PAREN@88..89 "("
          R_PAREN@89..90 ")"
        SEMICOLON@90..91 ";"
      WHITESPACE@91..92 "\n"
      R_CURLY@92..93 "}"
  WHITESPACE@93..94 "\n"