/**
 * Minimal GraphQL-over-HTTP client built on the global `fetch` (Node 18+).
 *
 * Replaces the `graphql-request` dependency. Only the surface this package
 * relied on is implemented: constructing with a url + headers, and a
 * `request(gql, variables)` method that resolves with the `data` payload or
 * rejects with a `ClientError` carrying `response.errors`.
 */
export type GraphQLError = {
    message: string;
    locations?: {
        line: number;
        column: number;
    }[];
    path?: (string | number)[];
    extensions?: Record<string, any>;
};
export type GraphQLResponse<T = any> = {
    data?: T;
    errors?: GraphQLError[];
    status: number;
};
export type GraphQLClientOptions = {
    headers?: Record<string, string>;
    credentials?: RequestCredentials;
};
export declare class ClientError extends Error {
    response: GraphQLResponse;
    constructor(response: GraphQLResponse);
}
export declare class GraphQLClient {
    private url;
    private options;
    constructor(url: string, options?: GraphQLClientOptions);
    request<TData = any, TVariables = any>(query: string, variables?: TVariables): Promise<TData>;
}