<commit_before>import {Message} from './Message';

export class AuthenticateMessage extends Message {

    constructor(private _signature: string, private _extra?: Object) {
        super(Message.MSG_AUTHENTICATE);
    }

    public wampifiedMsg() {
        return [this.msgCode, this.signature, this.extra];
    }

    get signature(): string {
        return this._signature;
    }

    get extra(): Object {
        return this._extra;
    }
}<commit_msg>ProtocolError: 'extra' in AUTHENTICATE: invalid type <type 'NoneType'><commit_after>import {Message} from './Message';

export class AuthenticateMessage extends Message {

    constructor(private _signature: string, private _extra?: Object) {
        super(Message.MSG_AUTHENTICATE);
    }

    public wampifiedMsg() {
        return [this.msgCode, this.signature, this.extra || {}];
    }

    get signature(): string {
        return this._signature;
    }

    get extra(): Object {
        return this._extra;
    }
}
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{'dir': 'git-commits-cleaned', 'id': '6595203', 'n_tokens_mistral': 280, 'n_tokens_neox': 270, 'n_words': 71}