import { BillingEntityType } from '../../model';
import { LiteralQueryNode, NullQueryNode, QueryNode, VariableAssignmentQueryNode } from '../../query-tree';
export declare function createBillingEntityCategoryNode(billingEntityConfig: BillingEntityType, entityNode: QueryNode): LiteralQueryNode | NullQueryNode | VariableAssignmentQueryNode;
export declare function createBillingEntityQuantityNode(billingEntityConfig: BillingEntityType, entityNode: QueryNode): QueryNode;