SOURCE_FILE@0..21
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    WHITESPACE@4..5 " "
    NAME@5..11
      IDENT@5..11 "Result"
    GENERIC_PARAM_LIST@11..14
      L_ANGLE@11..12 "<"
      TYPE_PARAM@12..13
        NAME@12..13
          IDENT@12..13 "T"
      R_ANGLE@13..14 ">"
    WHITESPACE@14..15 " "
    EQ@15..16 "="
    WHITESPACE@16..17 " "
    TUPLE_TYPE@17..19
      L_PAREN@17..18 "("
      R_PAREN@18..19 ")"
    SEMICOLON@19..20 ";"
  WHITESPACE@20..21 "\n"