export interface IFetchRequestHeaders {
    [header: string]: string;
}
export interface IFetchRequestInit {
    /**
     * Request method.
     */
    method?: string;
    /**
     * Request headers.
     */
    headers?: {
        [header: string]: string;
    };
    /**
     * Request body.
     */
    body?: ArrayBufferView | ArrayBuffer;
}
export interface IFetchResponseHeaders {
    /**
     * Get header case-insensitive.
     */
    get(header: string): string | null;
}
export interface IFetchResponse {
    /**
     * Response status code.
     */
    status: number;
    /**
     * Response headers.
     */
    headers: IFetchResponseHeaders;
    /**
     * Response body as data.
     */
    arrayBuffer: () => Promise<ArrayBuffer>;
}
export type IFetch = (url: string, init?: IFetchRequestInit) => Promise<IFetchResponse>;