+'AuthChangeFormFields': After converting a field information array obtained
+from a set of AuthenticationRequest classes into a form descriptor; hooks
+can tweak the array to change how login etc. forms should look.
+$requests: array of AuthenticationRequests the fields are created from
+$fieldInfo: field information array (union of all AuthenticationRequest::getFieldInfo() responses).
+&$formDescriptor: HTMLForm descriptor. The special key 'weight' can be set
+ to change the order of the fields.
+$action: one of the AuthManager::ACTION_* constants.
+
+'AuthManagerLoginAuthenticateAudit': A login attempt either succeeded or failed
+for a reason other than misconfiguration or session loss. No return data is
+accepted; this hook is for auditing only.
+$response: The MediaWiki\Auth\AuthenticationResponse in either a PASS or FAIL state.
+$user: The User object being authenticated against, or null if authentication
+ failed before getting that far.
+$username: A guess at the user name being authenticated, or null if we can't
+ even determine that.
+