def by_device_and_app_management_role_assignment_id(self,device_and_app_management_role_assignment_id: str) -> DeviceAndAppManagementRoleAssignmentItemRequestBuilder:
        """
        Provides operations to manage the roleAssignments property of the microsoft.graph.deviceManagement entity.
        param device_and_app_management_role_assignment_id: The unique identifier of deviceAndAppManagementRoleAssignment
        Returns: DeviceAndAppManagementRoleAssignmentItemRequestBuilder
        """
        if device_and_app_management_role_assignment_id is None:
            raise TypeError("device_and_app_management_role_assignment_id cannot be null.")
        from .item.device_and_app_management_role_assignment_item_request_builder import DeviceAndAppManagementRoleAssignmentItemRequestBuilder

        url_tpl_params = get_path_parameters(self.path_parameters)
        url_tpl_params["deviceAndAppManagementRoleAssignment%2Did"] = device_and_app_management_role_assignment_id
        return DeviceAndAppManagementRoleAssignmentItemRequestBuilder(self.request_adapter, url_tpl_params)

        Provides operations to manage the roleAssignments property of the microsoft.graph.deviceManagement entity.
        param device_and_app_management_role_assignment_id: The unique identifier of deviceAndAppManagementRoleAssignment
        Returns: DeviceAndAppManagementRoleAssignmentItemRequestBuilder
        
msgraph/generated/device_management/role_assignments/role_assignments_request_builder.py