Updated docstrings of authentication related functions

Author: michalpokusa

adafruit_httpserver/authentication.py

@@ -41,6 +41,10 @@ def __str__(self) -> str:
 def check_authentication(request: Request, auths: List[Union[Basic, Bearer]]) -> bool:
     """
     Returns ``True`` if request is authorized by any of the authentications, ``False`` otherwise.
+
+    Example::
+
+        check_authentication(request, [Basic("username", "password")])
     """
 
     auth_header = request.headers.get("Authorization")
@@ -56,6 +60,10 @@ def require_authentication(request: Request, auths: List[Union[Basic, Bearer]])
     Checks if the request is authorized and raises ``AuthenticationError`` if not.
 
     If the error is not caught, the server will return ``401 Unauthorized``.
+
+    Example::
+
+        require_authentication(request, [Basic("username", "password")])
     """
 
     if not check_authentication(request, auths):

adafruit_httpserver/server.py

@@ -362,7 +362,7 @@ def require_authentication(self, auths: List[Union[Basic, Bearer]]) -> None:
         Example::
 
             server = Server(pool, "/static")
-            server.require_authentication([Basic("user", "pass")])
+            server.require_authentication([Basic("username", "password")])
         """
         self._auths = auths