import { Any } from "@shareledgerjs/types/google/protobuf/any";
import { BaseClient } from "../../baseclient";
export interface AuthQueryExtensionMethods {
    /**
     * Returns an account if it exists and `null` otherwise.
     *
     * The account is a protobuf Any in order to be able to support many different
     * account types in one API. The caller needs to switch over the expected and supported
     * `typeUrl` and decode the `value` using its own type decoder.
     */
    account(address: string): Promise<Any | null>;
}
export interface AuthQueryExtension {
    readonly auth: AuthQueryExtensionMethods;
}
export declare function AuthQueryExtension<T extends {
    new (...args: any[]): BaseClient & AuthQueryExtension;
}>(constructor: T): T;