docs: def post(self, request, format=None):
          """
          Add a new Channel.
          """
          data = request.data.copy()
  
          # Get chat type record
          try:
              ct = ChatType.objects.get(pk=data.pop("chat_type"))
              data["chat_type"] = ct
          except ChatType.DoesNotExist:
              return typeNotFound404
  
          if not self.is_path_unique(
              None, data["publish_path"], ct.publish_path
          ):
              return notUnique400
  
          # Get user record
          try:
              u = User.objects.get(pk=data.pop("owner"))
              data["owner"] = u
          except User.DoesNotExist:
              return userNotFound404
  
          c = Channel(**data)
          c.save()
  
          self.handle_webhook(c)
  
          return Response(
              {
                  "text": "Channel saved.",
                  "method": "POST",
                  "saved": ChannelCMSSerializer(c).data,
              },
              200,
          )