Interface Adapter

interface Adapter {
    delete<T>(url: string, config?: RequestConfig): Promise<T>;
    get<T>(url: string, config?: RequestConfig): Promise<T>;
    post<T>(url: string, body: unknown, config?: RequestConfig): Promise<T>;
    put<T>(url: string, body: unknown, config?: RequestConfig): Promise<T>;
    setHeader(header: string, value: string): void;
}