added update_event function

spond/spond.py

@@ -243,3 +243,76 @@ async def get_event(self, uid):
         for event in self.events:
             if event["id"] == uid:
                 return event
+
+
+    async def update_event(self, uid, updates: dict):
+        """
+        Updates an existing event.
+
+        Parameters:
+        ----------
+        uid : str
+           UID of the event.
+        updates : dict
+            The changes. e.g. if you want to change the description -> {'description': "New Description with changes"} 
+
+        Returns:
+        ----------
+        json results of post command
+
+        """
+        if not self.cookie:
+            await self.login()
+        if not self.events:
+            await self.get_events()
+        for event in self.events:
+            if event["id"] == uid:
+                break
+
+        url = f"{self.apiurl}sponds/" + f"{uid}"
+
+        base_event = {"heading":str,
+                "description": str,
+                "spondType":"EVENT",
+                "startTimestamp":str,
+                "endTimestamp":str,
+                "commentsDisabled":False,
+                "maxAccepted":0,
+                "rsvpDate":None,
+                "location":{"id": str,
+                            "feature":str,
+                            "address":str,
+                            "latitude":float,
+                            "longitude":float},
+                "owners":[{"id":str}],
+                "visibility":"INVITEES",
+                "participantsHidden":False,
+                "autoReminderType":"DISABLED",
+                "autoAccept":False,
+                "payment":{},
+                "attachments":[],
+                "id":str,
+                "tasks":{"openTasks":[],
+                    "assignedTasks":[{"name":str,
+                                    "description":"",
+                                    "type":"ASSIGNED",
+                                    "id":str,
+                                    "adultsOnly":True,
+                                    "assignments":{"memberIds":[],
+                                    "profiles":[],
+                                    "remove":[]}}
+                                    ]
+                        }
+                }
+
+        for key in base_event:
+            if event.get(key) != None and not updates.get(key):
+                base_event[key] = event[key]
+            elif updates.get(key) != None:
+                base_event[key] = updates[key]
+
+        data = base_event
+        headers = {"content-type": "application/json;charset=utf-8"}
+        async with self.clientsession.post(url, json=data, headers=headers) as r:
+            self.events_update = await r.json()
+            return self.events