/**
 * @author mango
 * @description fetch type define
 */
import type { DriveMiddleware } from "./model";
/** Type narrow func define */
export interface NarrowFunc<T> {
    (source: unknown): boolean;
    (source: unknown): source is T;
}
/**
 * Removes falsy values (false, null, 0, "", undefined, and NaN) from an array.
 * @param source - The input array to compact.
 * @returns An array with falsy values removed.
 */
export declare function compact<T = unknown>(source: (T | undefined | null | false | '' | 0)[]): T[];
/**
 * Narrow source type to `String` && Check is not empty string.
 */
export declare function isNonEmptyString(source: unknown): source is Exclude<string, "">;
export declare const isEmptyValue: (data: unknown) => data is "" | undefined | null | [] | Record<string, never>;
export declare const isNonEmptyArray: (source: unknown) => source is unknown[];
/**
 * Narrow source type to `Array` && Check is not empty.
 */
export declare function isStringArray(source: unknown): source is string[];
/**
 * Narrow source type to `Number` &amp;&amp; Check is not `Infinity`, `-Infinity`, `NaN`.
 */
export declare function isFinite(source: unknown): source is number;
/**
 * Narrow source key type.
 * @example ```typescript
 * const obj: unknown;
 * isValidKey('key', obj, isString);
 * // obj is Recrode<'key', string>;
 * ```
 */
export declare function isValidKey<K extends string, T>(key: K, source: object, is: NarrowFunc<T>): source is Record<K, T>;
/**
 * Checks if the provided source is an instance of FormData.
 *
 * @param source The value to check.
 * @returns Returns true if source is an instance of FormData, false otherwise.
 */
export declare function isFormData(source: unknown): source is FormData;
/**
 * Checks if the provided source is an instance of ReadableStream.
 *
 * @param source The value to check.
 * @returns Returns true if source is an instance of ReadableStream, false otherwise.
 */
export declare function isReadableStream(source: unknown): source is ReadableStream;
/**
 * Checks if the given source is an instance of ArrayBuffer.
 * If is ArrayBuffer, narrow to type ArrayBuffer.
 * @param {unknown} source - The value to be checked.
 * @returns {boolean} Returns true if the source is an instance of ArrayBuffer, false otherwise.
 */
export declare function isArrayBuffer(source: unknown): source is ArrayBuffer;
/**
 * Checks if the given source is an instance of Uint8Array.
 * If is Uint8Array, narrow to type Uint8Array.
 * @param {unknown} source - The value to be checked.
 * @returns {boolean} Returns true if the source is an instance of Uint8Array, false otherwise.
 */
export declare function isUint8Array(source: unknown): source is Uint8Array;
/**
 * Narrow source type to `isArrayBufferLike`.
 */
export declare function isArrayBufferLike(source: unknown): source is ArrayBufferLike;
/**
 * Narrow source type to `ArrayBufferView`.
 */
export declare function isArrayBufferView(source: unknown): source is ArrayBufferView;
/**
 * Narrow source type to `BufferSource`.
 */
export declare function isBufferSource(source: unknown): source is BufferSource;
/**
 * Checks if the given source is an instance of URLSearchParams.
 * If is URLSearchParams, narrow to type URLSearchParams.
 * @param {unknown} source - The value to be checked.
 * @returns {boolean} Returns true if the source is an instance of URLSearchParams, false otherwise.
 */
export declare function isURLSearchParams(source: unknown): source is URLSearchParams;
/**
 * Checks if the given source is an instance of Blob.
 * If is Promise, narrow to type Promise.
 * @param {unknown} source - The value to be checked.
 * @returns {boolean} Returns true if the source is an instance of Blob, false otherwise.
 */
export declare function isBlob(source: unknown): source is Blob;
export declare function isNonRawBodyInit(source: unknown): source is Exclude<BodyInit, string | URLSearchParams>;
export declare function isRawTextBody(type?: string): boolean;
export declare function downloader(href: string, download: string): void;
export declare function src2name(src: string): string;
export declare function createMiddleware<T = unknown>(middleware: DriveMiddleware<T>): DriveMiddleware<T>;
/**
 * Constructs and returns a URLSearchParams object based on the provided initialization data.
 * Supports initializing with various types: URLSearchParams, string, string arrays, and plain objects.
 * Returns undefined if the initialization data does not match any supported type.
 *
 * @param init The initialization data for URLSearchParams.
 * @returns A URLSearchParams object constructed from the provided data, or undefined if invalid.
 */
export declare function iSearchParams(init: unknown): URLSearchParams | undefined;