AuthContainer.signup() method
Signature:
signup(loginIDs: {
        [key: string]: string;
    }[] | {
        [key: string]: string;
    }, password: string, options?: {
        realm?: string;
        metadata?: JSONObject;
    }): Promise<User>;
Parameters
| Parameter | Type | Description | 
|---|---|---|
| loginIDs | {        [key: string]: string;    }[] | {        [key: string]: string;    } | |
| password | string | |
| options | {        realm?: string;        metadata?: JSONObject;    } | 
Returns:
Promise<User>