export type SPARQLBindingsStream = {
    toArray(): Promise<unknown[]>;
};
export interface SPARQLQueryEngine {
    queryBindings(query: string, context: Record<string, unknown>): Promise<SPARQLBindingsStream>;
    queryBoolean(query: string, context: Record<string, unknown>): Promise<boolean>;
    invalidateHttpCache?: (url?: string) => Promise<void>;
}
export type SPARQLQueryEngineFactory = () => SPARQLQueryEngine | Promise<SPARQLQueryEngine>;
export interface SPARQLEngineConfig {
    createQueryEngine?: SPARQLQueryEngineFactory;
}
export declare const configureSparqlEngine: (config?: SPARQLEngineConfig | null) => void;
export declare const getConfiguredSparqlEngineFactory: (createQueryEngine?: SPARQLQueryEngineFactory | null) => SPARQLQueryEngineFactory;
export declare const createNodeModuleSparqlEngineFactory: (resolveFrom: string) => SPARQLQueryEngineFactory;
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