public UnsuccessfulFaceDisassociation withUserId(String userId) {
        setUserId(userId);
        return this;
    }
<p>
A provided ID for the UserID. Unique within the collection.
</p>

@param userId
       A provided ID for the UserID. Unique within the collection.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-rekognition/src/main/java/com/amazonaws/services/rekognition/model/UnsuccessfulFaceDisassociation.java