public void setUserPool(String userPool) {
        this.userPool = userPool;
    }
<p>
An identifier for a user pool. The user pool must be in the same region as the service that you are calling.
</p>

@param userPool
       An identifier for a user pool. The user pool must be in the same region as the service that you are
       calling.
aws-java-sdk-sagemaker/src/main/java/com/amazonaws/services/sagemaker/model/CognitoMemberDefinition.java