import type { DataSourceResultFn } from '../data-source.types';
import type { DataSourceFnBuilder } from './data-source-fn-builder.types';
import type { WithMapInput } from './with-map-input.types';
/**
 * Adds a mapInputFn and corresponding types to a DataSourceFnBuilder.
 * When built, the input type of the built function will correspond to the
 * Ok type of this function.
 *
 * @param mapInputFn - Called when mapping to the input of the builder's `fn`
 * @return A Result where the Ok type is whatever type we are mapping the input from
 */
export declare const withMapInput: <InputType, MapInputFromType>(mapInputFn: DataSourceResultFn<InputType, MapInputFromType>) => <BuilderType extends DataSourceFnBuilder>(builder: BuilderType) => BuilderType & import("./data-source-fn-builder.types").WithInputType<InputType> & import("./with-map-input.types").WithMapInputFn<InputType, MapInputFromType> & import("./with-map-input.types").WithMapInputFromType<MapInputFromType>;
/**
 * A type guard to determine if a builder has a mapInputFn.
 *
 * @param builder - Any DataSourceFnBuilder
 * @return boolean
 */
export declare const hasMapInputFn: <BuilderType, InputType, MapInputFromType>(builder?: BuilderType | undefined) => builder is BuilderType & import("./data-source-fn-builder.types").WithInputType<InputType> & import("./with-map-input.types").WithMapInputFn<InputType, MapInputFromType> & import("./with-map-input.types").WithMapInputFromType<MapInputFromType>;