declare class ProtocolIsEmptyError extends Error {
    constructor();
}
declare class AddressIsEmptyError extends Error {
    constructor();
}
declare class MessagingKeyVerificationError extends Error {
    readonly type = "messaging_key_validation_failed";
    readonly docs = "https://docs.mailchain.com/developer/errors/codes#messaging_key_validation_failed";
    constructor();
}
declare class ProvidedMessagingKeyIncorrectError extends Error {
    readonly type = "provided_messaging_key_incorrect";
    readonly docs = "https://docs.mailchain.com/developer/errors/codes#provided_messaging_key_incorrect";
    constructor(type: 'sender' | 'signer' | 'address');
}
declare class AddressMustBeProtocolAddressError extends Error {
    constructor();
}
declare class PublicKeyNotFoundError extends Error {
    constructor();
}

export { AddressIsEmptyError, AddressMustBeProtocolAddressError, MessagingKeyVerificationError, ProtocolIsEmptyError, ProvidedMessagingKeyIncorrectError, PublicKeyNotFoundError };