declare type Brand<K, T> = K & {
    __brand: T;
};
declare type SourceRef = Brand<string, 'sourceRef'>;
interface SourcePriority {
    sourceRef: SourceRef;
    timeout: number;
}
export interface SourcePrioritiesData {
    [path: string]: SourcePriority[];
}
export declare const getToPreferredDelta: (sourcePrioritiesData: SourcePrioritiesData, unknownSourceTimeout?: number) => (delta: any, now: Date, selfContext: string) => any;
export {};
