Require event hints for remote protocol errors (#202)

Co-authored-by: Miro <200482516+Mirochill@users.noreply.github.com>
Co-authored-by: Thomas Kriechbaumer <thomas@kriechbaumer.name>

Author: Mirochill

CHANGELOG.rst

@@ -1,6 +1,12 @@
 Release History
 ===============
 
+1.4.0 (unreleased)
+------------------
+
+- Require ``event_hint`` when constructing ``RemoteProtocolError``.
+  This is an API-breaking change.
+
 1.3.2 (2025-11-20)
 ------------------
 

src/wsproto/utilities.py

@@ -47,12 +47,15 @@ class RemoteProtocolError(ProtocolError):
 
     .. attribute:: event_hint
 
-       This is a suggested wsproto Event to send to the client based
-       on the error. It could be None if no hint is available.
+       This is the suggested wsproto Event to send to the client based
+       on the error.
+
+    .. versionchanged:: 1.4.0
+       Made ``event_hint`` a required argument.
 
     """
 
-    def __init__(self, message: str, event_hint: Event | None = None) -> None:
+    def __init__(self, message: str, event_hint: Event) -> None:
         self.event_hint = event_hint
         super().__init__(message)