def by_virtual_event_registration_id(self,virtual_event_registration_id: str) -> VirtualEventRegistrationItemRequestBuilder:
        """
        Provides operations to manage the registrations property of the microsoft.graph.virtualEventWebinar entity.
        param virtual_event_registration_id: The unique identifier of virtualEventRegistration
        Returns: VirtualEventRegistrationItemRequestBuilder
        """
        if virtual_event_registration_id is None:
            raise TypeError("virtual_event_registration_id cannot be null.")
        from .item.virtual_event_registration_item_request_builder import VirtualEventRegistrationItemRequestBuilder

        url_tpl_params = get_path_parameters(self.path_parameters)
        url_tpl_params["virtualEventRegistration%2Did"] = virtual_event_registration_id
        return VirtualEventRegistrationItemRequestBuilder(self.request_adapter, url_tpl_params)

        Provides operations to manage the registrations property of the microsoft.graph.virtualEventWebinar entity.
        param virtual_event_registration_id: The unique identifier of virtualEventRegistration
        Returns: VirtualEventRegistrationItemRequestBuilder
        
msgraph/generated/solutions/virtual_events/webinars/item/registrations/registrations_request_builder.py