api_types: Add RealmUserEvent and RealmUserEventPerson.

This commit contains types for RealmUserEvent and RealmUserEventPerson added to
api_types.

Like a few other fields, custom_profile_field data may be sent and will be
updated for the user. It is commented out since we will want to implement this,
and we want to ensure this is done correctly, and may need a special case.

zulipterminal/api_types.py

@@ -167,6 +167,39 @@ class ReactionEvent(TypedDict):
     message_id: int
 
 
+class RealmUserEventPerson(TypedDict):
+    user_id: int
+
+    full_name: str
+
+    avatar_url: str
+    avatar_source: str
+    avatar_url_medium: str
+    avatar_version: int
+
+    # NOTE: This field will be removed in future as it is redundant with the user_id
+    # email: str
+    timezone: str
+
+    bot_owner_id: int
+
+    role: int
+
+    is_billing_admin: bool  # New in ZFL 73 (Zulip 5.0)
+
+    delivery_email: str  # NOTE: Only sent to admins
+
+    # custom_profile_field: Dict  # TODO: Requires checking before implementation
+
+    new_email: str
+
+
+class RealmUserEvent(TypedDict):
+    type: Literal["realm_user"]
+    op: Literal["update"]
+    person: RealmUserEventPerson
+
+
 class SubscriptionEvent(TypedDict):
     type: Literal["subscription"]
     op: str
@@ -249,4 +282,5 @@ class UpdateGlobalNotificationsEvent(TypedDict):
     UpdateRealmEmojiEvent,
     UpdateUserSettingsEvent,
     UpdateGlobalNotificationsEvent,
+    RealmUserEvent,
 ]