public UnsubscribeFromDatasetRequest withIdentityId(String identityId) {
        setIdentityId(identityId);
        return this;
    }
<p>
Unique ID for this identity.
</p>

@param identityId
       Unique ID for this identity.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-cognitosync/src/main/java/com/amazonaws/services/cognitosync/model/UnsubscribeFromDatasetRequest.java