export type HTTPMethod = 'GET' | 'OPTIONS' | 'HEAD' | 'POST' | 'PUT' | 'DELETE' | 'TRACE' | 'CONNECT' | 'PATCH';
export declare function normalizeHeader(header: unknown): Record<string, string>;
export declare function normalizeFormData(formData: unknown): Record<string, string>;
export declare function normalizeMethod(method?: string): HTTPMethod;
export declare function normalizeTimeout(time: number | undefined, unlimited?: boolean): number | undefined;
/**
 * modify url
 */
export declare function dirtyURL(url: string, method: HTTPMethod, data?: unknown): string;