code: def put(self, id=None):
          
  
          toa = self.request.headers.get("Caesium-TOA")
  
          if not toa:
              self.raise_error(400, "Caesium-TOA header is required, none found")
              self.finish(self.request.headers.get("Caesium-TOA"))
  
          meta = self._get_meta_data()
          meta["bulk_id"] = uuid.uuid4().get_hex()
          ids = self.get_json_argument("ids")
          patch = self.get_json_argument("patch")
  
          self.get_json_argument("ids", [])
          for id in ids:
              stack = AsyncSchedulableDocumentRevisionStack(self.client.collection_name, self.settings, master_id=id)
              stack.push(patch, toa=toa, meta=meta)
  
          self.write({
              "count": len(ids),
              "result": {
                  "ids": ids,
                  "toa": toa,
                  "patch": patch,
              }
          })
          self.finish()
docs: Update many objects with a single PUT.
  
          Example Request::
  
              {
                  "ids": ["52b0ede98ac752b358b1bd69", "52b0ede98ac752b358b1bd70"],
                  "patch": {
                      "foo": "bar"
                  }
              }