import type { ObjectSource, ObjectGenerator } from "../types";
/**
 * Type guard to detect whether the source is a Faker function or not.
 * @param source Object or function generator
 * @returns true if source is a function.
 */
export declare const isSourceGenerator: <T>(source: ObjectSource<T>) => source is ObjectGenerator<T>;
/**
 * Process the provided source according to its type returning a resultant object.
 * @param source Object or function generator
 * @returns Source object.
 */
export declare const getDefinedSource: <T>(source?: ObjectSource<T>) => ObjectSource<T>;