def by_operation_id(self,operation_id: str) -> OperationItemRequestBuilder:
        """
        Provides operations to manage the operations property of the microsoft.graph.partners.billing.billing entity.
        param operation_id: The unique identifier of operation
        Returns: OperationItemRequestBuilder
        """
        if operation_id is None:
            raise TypeError("operation_id cannot be null.")
        from .item.operation_item_request_builder import OperationItemRequestBuilder

        url_tpl_params = get_path_parameters(self.path_parameters)
        url_tpl_params["operation%2Did"] = operation_id
        return OperationItemRequestBuilder(self.request_adapter, url_tpl_params)

        Provides operations to manage the operations property of the microsoft.graph.partners.billing.billing entity.
        param operation_id: The unique identifier of operation
        Returns: OperationItemRequestBuilder
        
msgraph/generated/reports/partners/billing/operations/operations_request_builder.py