export declare type KeyMap = {
    [x: string]: boolean;
};
export declare function Blank(): void;
export declare namespace Blank {
    var prototype: any;
}
export declare function has(map: object, property: string): boolean;
export declare function createMap(): any;
export declare function truncateArray(arr: Array<{} | null | undefined>, length: number): void;
export declare function RandomID(): string;
export declare function isEqual(a: any, b: any): boolean;
export declare function decodeFormBody(body: any): FormData;
export declare function parseHTTPHeaders(rawHeaders: any): Headers;
export declare function fileReaderReady(reader: any): Promise<unknown>;
export declare function readBlobAsArrayBuffer(blob: any): Promise<unknown>;
export declare function readBlobAsText(blob: any): Promise<unknown>;
export declare function readArrayBufferAsText(buf: any): string;
export declare function bufferClone(buf: any): any;