def by_event_id(self,event_id: str) -> EventItemRequestBuilder:
        """
        Provides operations to manage the events property of the microsoft.graph.calendar entity.
        param event_id: The unique identifier of event
        Returns: EventItemRequestBuilder
        """
        if event_id is None:
            raise TypeError("event_id cannot be null.")
        from .item.event_item_request_builder import EventItemRequestBuilder

        url_tpl_params = get_path_parameters(self.path_parameters)
        url_tpl_params["event%2Did"] = event_id
        return EventItemRequestBuilder(self.request_adapter, url_tpl_params)

        Provides operations to manage the events property of the microsoft.graph.calendar entity.
        param event_id: The unique identifier of event
        Returns: EventItemRequestBuilder
        
msgraph/generated/groups/item/calendar/events/events_request_builder.py