import type { DescMessage, DescMethod, DescMethodUnary, DescService, MessageValidType } from "@bufbuild/protobuf";
import type { CallOptions } from "@connectrpc/connect";
import type { Options, RequestOptions } from "@cerbos/core";
import type { Optional } from "@cerbos/core/~internal";
import type { Credentials } from "./credentials.js";
import type { MessageInitShape } from "./protobuf.js";
/**
 * Options for connecting to Cerbos Hub.
 */
export interface ClientOptions extends Pick<Options, "headers" | "userAgent"> {
    /**
     * Client credentials to authenticate with Cerbos Hub.
     */
    credentials: Credentials;
    /**
     * Base URL of the Cerbos Hub server.
     *
     * @defaultValue `"https://api.cerbos.cloud"`
     */
    baseUrl?: string | undefined;
}
interface InternalClientOptions extends Optional<ClientOptions> {
    createError?: ((error: unknown) => Error) | undefined;
}
/** @internal */
export type Client<Desc extends DescService> = {
    [P in keyof Desc["method"]]: Method<Desc["method"][P]>;
};
type Method<M extends DescMethod> = M extends DescMethodUnary<infer I, infer O> ? MethodUnary<I, O> : never;
type MethodUnary<I extends DescMessage, O extends DescMessage> = (request: MessageInitShape<I>, options: CallOptions) => Promise<MessageValidType<O>>;
/** @internal */
export declare function createClient<T extends DescService>(service: T, { credentials, createError, ...options }?: InternalClientOptions): Client<T>;
export declare function callOptions({ headers, signal, }?: RequestOptions): CallOptions;
export {};
//# sourceMappingURL=client.d.ts.map