/**
 * Copyright 2020 Inrupt Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
 * Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
import { BlankNode, Literal, NamedNode, Quad } from "rdf-js";
import { SolidDataset } from "./interfaces";
/**
 * Get Quads matching the given Subject, Predicate, Object and/or Graph.
 *
 * Note: we only put the 'graph' component as the last param 'cos we don't yet
 * assert much on quads in this codebase...
 *
 * @param dataset the RDF dataset to match against
 * @param subject the subject to match (or null to represent a 'wildcard')
 * @param predicate the predicate to match (or null to represent a 'wildcard')
 * @param object the object to match (or null to represent a 'wildcard')
 * @param graph the graph to match (or null to represent a 'wildcard')
 * @return if only one matching quad found return that quad, else null
 */
export declare function getMatchingQuads(dataset: SolidDataset, pattern?: {
    subject?: string | NamedNode | BlankNode;
    predicate?: string | NamedNode;
    object?: string | NamedNode | BlankNode | Literal;
    graph?: null;
}): Quad[];