SOURCE_FILE@0..49
  IMPL@0..48
    IMPL_KW@0..4 "impl"
    WHITESPACE@4..5 " "
    PATH_TYPE@5..6
      PATH@5..6
        PATH_SEGMENT@5..6
          NAME_REF@5..6
            IDENT@5..6 "T"
    WHITESPACE@6..7 " "
    FOR_KW@7..10 "for"
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    PATH_TYPE@11..14
      PATH@11..14
        PATH_SEGMENT@11..14
          NAME_REF@11..14
            IDENT@11..14 "Foo"
    WHITESPACE@14..15 " "
    ASSOC_ITEM_LIST@15..48
      L_CURLY@15..16 "{"
      WHITESPACE@16..21 "\n    "
      FN@21..46
        DEFAULT_KW@21..28 "default"
        WHITESPACE@28..29 " "
        ASYNC_KW@29..34 "async"
        WHITESPACE@34..35 " "
        FN_KW@35..37 "fn"
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        NAME@38..41
          IDENT@38..41 "foo"
        PARAM_LIST@41..43
          L_PAREN@41..42 "("
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        WHITESPACE@43..44 " "
        BLOCK_EXPR@44..46
          L_CURLY@44..45 "{"
          R_CURLY@45..46 "}"
      WHITESPACE@46..47 "\n"
      R_CURLY@47..48 "}"
  WHITESPACE@48..49 "\n"