import { IndexedFormula, Literal } from 'rdflib';
import { NodeRef } from './index';
/**
 * @ignore This is a utility type for other parts of the code, and not part of the public API.
 */
export declare type FindEntityInStore = (store: IndexedFormula, knownEntity1: NodeRef, knownEntity2: NodeRef, document: NodeRef) => NodeRef | Literal | null;
/**
 * @ignore This is a utility type for other parts of the code, and not part of the public API.
 */
export declare type FindEntitiesInStore = (store: IndexedFormula, knownEntity1: NodeRef, knownEntity2: NodeRef, document: NodeRef) => Array<NodeRef | Literal>;
/**
 * @ignore This is a utility method for other parts of the code, and not part of the public API.
 */
export declare const findSubjectInStore: FindEntityInStore;
/**
 * @ignore This is a utility method for other parts of the code, and not part of the public API.
 */
export declare const findSubjectsInStore: FindEntitiesInStore;
/**
 * @ignore This is a utility method for other parts of the code, and not part of the public API.
 */
export declare const findPredicateInStore: FindEntityInStore;
/**
 * @ignore This is a utility method for other parts of the code, and not part of the public API.
 */
export declare const findPredicatesInStore: FindEntitiesInStore;
/**
 * @ignore This is a utility method for other parts of the code, and not part of the public API.
 */
export declare const findObjectInStore: FindEntityInStore;
/**
 * @ignore This is a utility method for other parts of the code, and not part of the public API.
 */
export declare const findObjectsInStore: FindEntitiesInStore;
/**
 * @ignore This is a utility method for other parts of the code, and not part of the public API.
 */
export declare function findEntityInStore(store: IndexedFormula, type: 'subject' | 'predicate' | 'object', subjectRef: null | NodeRef, predicateRef: null | NodeRef, objectRef: null | NodeRef, documentNode: NodeRef): NodeRef | Literal | null;
/**
 * @ignore This is a utility method for other parts of the code, and not part of the public API.
 */
export declare function findEntitiesInStore(store: IndexedFormula, type: 'subject' | 'predicate' | 'object', subjectRef: null | NodeRef, predicateRef: null | NodeRef, objectRef: null | NodeRef, documentNode: NodeRef): Array<NodeRef | Literal>;