import { Network } from '../types/common';
export declare const ErrorCodes: {
    NOT_SUPPORTED: string;
    SIGNER_REQUIRED: string;
};
export declare class NotSupportedError extends Error {
    readonly code: string;
    constructor(method: string, network: Network);
}
export declare class SignerRequiredError extends Error {
    readonly code: string;
    constructor();
}