SOURCE_FILE@0..44
  FN@0..43
    FN_KW@0..2 "fn"
    WHITESPACE@2..3 " "
    NAME@3..4
      IDENT@3..4 "f"
    PARAM_LIST@4..6
      L_PAREN@4..5 "("
      R_PAREN@5..6 ")"
    WHITESPACE@6..7 " "
    BLOCK_EXPR@7..43
      STMT_LIST@7..43
        L_CURLY@7..8 "{"
        WHITESPACE@8..13 "\n    "
        PAREN_EXPR@13..41
          L_PAREN@13..14 "("
          BIN_EXPR@14..40
            TRY_EXPR@14..23
              ATTR@14..18
                POUND@14..15 "#"
                L_BRACK@15..16 "["
                META@16..17
                  PATH@16..17
                    PATH_SEGMENT@16..17
                      NAME_REF@16..17
                        IDENT@16..17 "a"
                R_BRACK@17..18 "]"
              WHITESPACE@18..19 " "
              PATH_EXPR@19..22
                PATH@19..22
                  PATH_SEGMENT@19..22
                    NAME_REF@19..22
                      IDENT@19..22 "lhs"
              QUESTION@22..23 "?"
            WHITESPACE@23..24 " "
            PLUS@24..25 "+"
            WHITESPACE@25..26 " "
            AWAIT_EXPR@26..40
              ATTR@26..30
                POUND@26..27 "#"
                L_BRACK@27..28 "["
                META@28..29
                  PATH@28..29
                    PATH_SEGMENT@28..29
                      NAME_REF@28..29
                        IDENT@28..29 "b"
                R_BRACK@29..30 "]"
              WHITESPACE@30..31 " "
              PATH_EXPR@31..34
                PATH@31..34
                  PATH_SEGMENT@31..34
                    NAME_REF@31..34
                      IDENT@31..34 "rhs"
              DOT@34..35 "."
              AWAIT_KW@35..40 "await"
          R_PAREN@40..41 ")"
        WHITESPACE@41..42 "\n"
        R_CURLY@42..43 "}"
  WHITESPACE@43..44 "\n"