def by_mobile_app_assignment_id(self,mobile_app_assignment_id: str) -> MobileAppAssignmentItemRequestBuilder:
        """
        Provides operations to manage the assignments property of the microsoft.graph.mobileApp entity.
        param mobile_app_assignment_id: The unique identifier of mobileAppAssignment
        Returns: MobileAppAssignmentItemRequestBuilder
        """
        if mobile_app_assignment_id is None:
            raise TypeError("mobile_app_assignment_id cannot be null.")
        from .item.mobile_app_assignment_item_request_builder import MobileAppAssignmentItemRequestBuilder

        url_tpl_params = get_path_parameters(self.path_parameters)
        url_tpl_params["mobileAppAssignment%2Did"] = mobile_app_assignment_id
        return MobileAppAssignmentItemRequestBuilder(self.request_adapter, url_tpl_params)

        Provides operations to manage the assignments property of the microsoft.graph.mobileApp entity.
        param mobile_app_assignment_id: The unique identifier of mobileAppAssignment
        Returns: MobileAppAssignmentItemRequestBuilder
        
msgraph/generated/device_app_management/mobile_apps/item/graph_ios_store_app/assignments/assignments_request_builder.py