public java.util.List<String> getAliasAttributes() {
        return aliasAttributes;
    }
<p>
Attributes supported as an alias for this user pool. Possible values: <b>phone_number</b>, <b>email</b>, or
<b>preferred_username</b>.
</p>

@return Attributes supported as an alias for this user pool. Possible values: <b>phone_number</b>, <b>email</b>,
        or <b>preferred_username</b>.
@see AliasAttributeType
aws-java-sdk-cognitoidp/src/main/java/com/amazonaws/services/cognitoidp/model/CreateUserPoolRequest.java