SOURCE_FILE@0..16
  TRAIT@0..15
    AUTO_KW@0..4 "auto"
    WHITESPACE@4..5 " "
    TRAIT_KW@5..10 "trait"
    WHITESPACE@10..11 " "
    NAME@11..12
      IDENT@11..12 "T"
    WHITESPACE@12..13 " "
    ASSOC_ITEM_LIST@13..15
      L_CURLY@13..14 "{"
      R_CURLY@14..15 "}"
  WHITESPACE@15..16 "\n"