import { ArrayRelationship, ManualConfiguration, ObjectRelationship, Schema } from './types';
export declare const MULTI_TENANT_COLUMNS: Set<string>;
export declare function foreignKeyForObj(rel: ObjectRelationship): string;
export declare function foreignKeyForArray(rel: ArrayRelationship): string;
export declare function foreignKeyForReverseObj(rel: ObjectRelationship): {
    fkCol: string;
    sourceTable: string;
} | undefined;
/**
 * Parse elements of primary key from pkey function definition.
 * e.g. pkey(VARIADIC ARRAY[tenant_id, graph_name, source, uid])
 */
export declare function parsePrimaryKeys(exp: string, camelCaseFieldNames: boolean, includeMultiTenantColumns?: boolean): string[];
export declare function isManualConfiguration(using: ManualConfiguration | any): using is ManualConfiguration;
export interface SchemaLoader {
    loadSchema(): Promise<Schema>;
}