import { Interfaces, Models } from '@open-rights-exchange/chain-js';
import { EthereumPrivateKey, SignMessagePersonalSignDataInput, SignMessageOptions, SignMessageSignTypedDataInput } from './models';
export declare class EthereumSignMessage implements Interfaces.SignMessage {
    constructor(message: string, options?: SignMessageOptions);
    private _isValidated;
    private _signMethod;
    private _options;
    private _message;
    private applyOptions;
    private applyMessage;
    /** Options provided when the SignMessage class was created */
    get options(): SignMessageOptions;
    /** Message provided when the SignMessage class was created */
    get message(): SignMessageSignTypedDataInput | SignMessagePersonalSignDataInput;
    private setSignMethod;
    get signMethod(): string;
    /** Whether data structure has been validated - via validate() */
    get isValidated(): boolean;
    /** Verifies that the structure of the signature request is valid.
     *  Throws if any problems */
    validate(): Promise<Models.SignMessageValidateResult>;
    /** Throws if not validated */
    private assertIsValidated;
    /** Sign the string or structured data */
    sign(privateKeys: EthereumPrivateKey[]): Promise<Models.SignMessageResult>;
}