SOURCE_FILE
  TRAIT
    TRAIT_KW "trait"
    WHITESPACE " "
    NAME
      IDENT "Z"
    GENERIC_PARAM_LIST
      L_ANGLE "<"
      TYPE_PARAM
        NAME
          IDENT "U"
      R_ANGLE ">"
    WHITESPACE " "
    EQ "="
    WHITESPACE " "
    TYPE_BOUND_LIST
      TYPE_BOUND
        PATH_TYPE
          PATH
            PATH_SEGMENT
              NAME_REF
                IDENT "T"
              GENERIC_ARG_LIST
                L_ANGLE "<"
                TYPE_ARG
                  PATH_TYPE
                    PATH
                      PATH_SEGMENT
                        NAME_REF
                          IDENT "U"
                R_ANGLE ">"
    SEMICOLON ";"
  WHITESPACE "\n"
