/**
 * Query Builder — fluent API for querying relational nodes and edges
 * with Indigenous protocol awareness.
 */
import type { RelationalNode, RelationalEdge, Relation } from '@medicine-wheel/ontology-core';
import type { NodeFilter, EdgeFilter, RelationFilter, QuerySort, QueryPagination, QueryResult } from './types.js';
/** Apply a NodeFilter to an array of nodes */
export declare function filterNodes(nodes: RelationalNode[], filter: NodeFilter): RelationalNode[];
/** Apply an EdgeFilter to an array of edges */
export declare function filterEdges(edges: RelationalEdge[], filter: EdgeFilter): RelationalEdge[];
/** Apply sorting to nodes */
export declare function sortNodes(nodes: RelationalNode[], sort: QuerySort): RelationalNode[];
/** Apply pagination */
export declare function paginate<T>(items: T[], pagination: QueryPagination): QueryResult<T>;
/** Filter nodes that have relations to a specific node */
export declare function filterByRelation(nodes: RelationalNode[], edges: RelationalEdge[], targetNodeId: string): RelationalNode[];
/** Count relations per node */
export declare function relationCounts(nodes: RelationalNode[], edges: RelationalEdge[]): Map<string, number>;
/** Filter nodes with minimum relation count */
export declare function filterByMinRelations(nodes: RelationalNode[], edges: RelationalEdge[], minRelations: number): RelationalNode[];
/** Apply a RelationFilter to first-class Relation objects */
export declare function filterRelations(relations: Relation[], filter: RelationFilter): Relation[];
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