public CreateUserRequest withAuthenticationType(AuthenticationType authenticationType) {
        this.authenticationType = authenticationType.toString();
        return this;
    }
<p>
The authentication type for the user. You must specify USERPOOL.
</p>

@param authenticationType
       The authentication type for the user. You must specify USERPOOL.
@return Returns a reference to this object so that method calls can be chained together.
@see AuthenticationType
aws-java-sdk-appstream/src/main/java/com/amazonaws/services/appstream/model/CreateUserRequest.java