params.put("User Info ID", e.getUserInfoId());
            params.put("User Session ID", e.getUserSessionId());
            params.put("Access Type", e.getAccessType());
            params.put("Search Word", e.getSearchWord());
            params.put("Requested Time", FessFunctions.formatDate(e.getRequestedAt()));
            params.put("Query Time", toNumberString(e.getQueryTime()));

I think `Union[SomeType, None]` is more explicit about what it means.

It's just about the words and names. But those words can affect how you and your teammates think about the code.

				"application/vnd.ms-wmdrm.lic-resp",
				"application/vnd.ms-wmdrm.meter-chlg-req",
				"application/vnd.ms-wmdrm.meter-resp",
				"application/vnd.ms-word.document.macroenabled.12",
				"application/vnd.ms-word.template.macroenabled.12",
				"application/vnd.ms-works",
				"application/vnd.ms-wpl",
				"application/vnd.ms-xpsdocument",
				"application/vnd.mseq",
				"application/vnd.msign",

			want:     false,
		},
		{
			testName: "root-dir",
			entry:    "doc/",
			dir:      "",
			sep:      slashSeparator,
			want:     true,
		},
		{
			testName: "root-file",
			entry:    "word.doc",
			dir:      "",
			sep:      slashSeparator,
			want:     true,
		},
	}
	for _, tt := range tests {
		t.Run(tt.testName, func(t *testing.T) {
			e := metaCacheEntry{
				name: tt.entry,

    public static final String SUCCESS_upload_kuromoji_file = "{success.upload_kuromoji_file}";

    /** The key of the message: Uploaded Additional Word file. */
    public static final String SUCCESS_upload_elevate_word = "{success.upload_elevate_word}";

    /** The key of the message: Uploaded Bad Word file. */
    public static final String SUCCESS_upload_bad_word = "{success.upload_bad_word}";

   * consider the following:
   *
   * <ul>
   *   <li>it may split surrogate pairs
   *   <li>it may split characters and combining characters
   *   <li>it does not consider word boundaries
   *   <li>if truncating for display to users, there are other considerations that must be taken
   *       into account
   *   <li>the appropriate truncation indicator may be locale-dependent

    top-level class and `Credential` is replaced with a utility class called
    `Credentials`.

 *  **OkHttpClient.getFollowProtocolRedirects() renamed to
    getFollowSslRedirects()**. We reserve the word _protocol_ for the HTTP
    version being used (HTTP/1.1, HTTP/2). The old name of this method was
    misleading; it was always used to configure redirects between `https://` and
    `http://` schemes.

  /**
   * <a
   * href="https://learn.microsoft.com/en-us/archive/blogs/vsofficedeveloper/office-2007-file-format-mime-types-for-http-content-streaming-2">Microsoft
   * Word</a> documents.
   */
  public static final MediaType MICROSOFT_WORD = createConstant(APPLICATION_TYPE, "msword");

  /**
   * Media type for <a

pkg math/big, const MaxBase = 36
pkg math/big, type Word uintptr
pkg net, func ListenUnixgram(string, *UnixAddr) (*UDPConn, error)
pkg os (linux-arm), const O_SYNC = 1052672
pkg os (linux-arm), const O_SYNC = 4096
pkg os (linux-arm-cgo), const O_SYNC = 1052672

10EB2..10EFC  ; disallowed                             # NA   <reserved-10EB2>..<reserved-10EFC>
10EFD..10EFF  ; valid                                  # 15.0 ARABIC SMALL LOW WORD SAKTA..ARABIC SMALL LOW WORD MADDA
10F00..10F1C  ; valid                                  # 11.0 OLD SOGDIAN LETTER ALEPH..OLD SOGDIAN LETTER FINAL TAW WITH VERTICAL TAIL