import type { OntologyToOntologyOutwardEdge, OntologyTypeVertexId, OutwardEdge, Subgraph } from "../../../types/subgraph.js";
import type { VersionedUrl } from "@blockprotocol/type-system";
/**
 * This is a helper function to extract ontology edges given an `outwardEdgePredicate` function.
 *
 * @internal
 * @param subgraph {Subgraph} - The `Subgraph` containing the underlying ontology types
 * @param ontologyTypeId {OntologyTypeVertexId | VersionedUrl} - The identifier of the `EntityType` to search for
 * @param outwardEdgePredicate {(outwardEdge: OutwardEdge<boolean>) => outwardEdge is OntologyToOntologyOutwardEdge} - The predicate to filter edges by
 * @returns {OntologyTypeVertexId[]} - The resulting endpoints of the filtered edges
 */
export declare const getOntologyEndpointsForOntologyOutwardEdge: (subgraph: Subgraph, ontologyTypeId: OntologyTypeVertexId | VersionedUrl, outwardEdgePredicate: (outwardEdge: OutwardEdge) => outwardEdge is OntologyToOntologyOutwardEdge) => OntologyTypeVertexId[];