import type { Client } from "../generated/client/types.js";
import type E621 from "../index.js";
interface AnyResponse<D = unknown> {
    data?: D;
    error: unknown;
    request: Request;
    response: Response;
}
type AnyDataClass<D = unknown, T = unknown> = new (e621: E621, data: D) => T;
type DataType<R extends AnyResponse> = R extends AnyResponse<infer U> ? Exclude<U, undefined> : never;
type UnwrapData<R extends AnyResponse> = DataType<R> extends Array<infer U> ? U : DataType<R>;
/** @category Modules */
export default abstract class Base {
    protected client: Client;
    protected e621: E621;
    constructor(e621: E621, client: Client);
    /** @internal */
    protected _handleResponse<R extends AnyResponse, S extends number = number, T extends boolean = boolean, C extends AnyDataClass<UnwrapData<R>> | undefined = undefined, CR = C extends AnyDataClass<UnwrapData<R>, infer I> ? I : undefined>(res: R, successStatus?: S, throwOnNotFound?: T, klass?: C): T extends true ? (S extends 204 ? null : S extends 302 ? string : C extends undefined ? DataType<R> : (DataType<R> extends Array<any> ? Array<CR> : CR)) : (S extends 204 ? null : S extends 302 ? string : (C extends undefined ? DataType<R> : (DataType<R> extends Array<any> ? Array<CR> : CR)) | null);
}
export {};