* @param username The username for which to change the password.
     * @param password The new password.
     * @return True if the password was successfully changed in all chains, false otherwise.
     */
    public boolean changePassword(final String username, final String password) {
        return chains().get(stream -> stream.allMatch(c -> c.changePassword(username, password)));
    }

    /**

#### Про `**user_dict`

`UserInDB(**user_dict)` означает:

*Передавать ключи и значения `user_dict` непосредственно в качестве аргументов ключ-значение, что эквивалентно:*

```Python
UserInDB(
    username = user_dict["username"],
    email = user_dict["email"],
    full_name = user_dict["full_name"],
    disabled = user_dict["disabled"],
    hashed_password = user_dict["hashed_password"],
)
```

object Credentials {
  /** Returns an auth credential for the Basic scheme. */
  @JvmStatic @JvmOverloads
  fun basic(
    username: String,
    password: String,
    charset: Charset = ISO_8859_1,
  ): String {
    val usernameAndPassword = "$username:$password"
    val encoded = usernameAndPassword.encode(charset).base64()
    return "Basic $encoded"
  }

```

would result in something equivalent to:

```Python
UserInDB(
    username="john",
    password="secret",
    email="******@****.***",
    full_name=None,
)
```

Or more exactly, using `user_dict` directly, with whatever contents it might have in the future:

```Python
UserInDB(
    username = user_dict["username"],
    password = user_dict["password"],
    email = user_dict["email"],

    /**
     * Create username/password credentials with specified domain
     *
     * @param domain the authentication domain
     * @param username the username
     * @param passwordHash
     *            NT password hash
     */
    public NtlmNtHashAuthenticator(final String domain, final String username, final byte[] passwordHash) {
        super(domain, username, (String) null, AuthenticationType.USER);

    public void delete(final User user) {
        ComponentUtil.getLdapManager().delete(user);
    }

    @Override
    public boolean changePassword(final String username, final String password) {
        final boolean changed = ComponentUtil.getLdapManager().changePassword(username, password);
        return !changed || ComponentUtil.getFessConfig().isLdapAdminSyncPassword();
    }

    @Override
    public User load(final User user) {

            false, false, "Long", 0, 0, null, null, false, null, null, null, null, null, false);
    protected final ColumnInfo _columnUsername = cci("username", "username", null, null, String.class, "username", null, false, false,
            false, "keyword", 0, 0, null, null, false, null, null, null, null, null, false);

        TermQueryBuilder builder = regTermQ("username", username);
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

    public void setUsername_NotEqual(String username) {
        setUsername_NotTerm(username, null);
    }

    public void setUsername_NotTerm(String username) {
        setUsername_NotTerm(username, null);

🍵 👈, 👥 🥇 🗜 `username` & `password` `bytes` 🔢 👫 ⏮️ 🔠-8️⃣.

⤴️ 👥 💪 ⚙️ `secrets.compare_digest()` 🚚 👈 `credentials.username` `"stanleyjobson"`, & 👈 `credentials.password` `"swordfish"`.

{* ../../docs_src/security/tutorial007.py hl[1,11:21] *}

👉 🔜 🎏:

```Python
if not (credentials.username == "stanleyjobson") or not (credentials.password == "swordfish"):

                + ", protocolScheme=" + protocolScheme + ", updatedBy=" + updatedBy + ", updatedTime=" + updatedTime + ", username="
                + username + ", docMeta=" + docMeta + "]";
    }