SOURCE_FILE
  USE
    USE_KW "use"
    WHITESPACE " "
    USE_TREE
      PATH
        PATH_SEGMENT
          NAME_REF
            IDENT "std"
      WHITESPACE " "
      RENAME
        AS_KW "as"
        WHITESPACE " "
        NAME
          IDENT "stdlib"
    SEMICOLON ";"
  WHITESPACE "\n"
  USE
    USE_KW "use"
    WHITESPACE " "
    USE_TREE
      PATH
        PATH_SEGMENT
          NAME_REF
            IDENT "Trait"
      WHITESPACE " "
      RENAME
        AS_KW "as"
        WHITESPACE " "
        UNDERSCORE "_"
    SEMICOLON ";"
  WHITESPACE "\n"