public String getClientRequestToken() {
        return this.clientRequestToken;
    }
<p>
A unique identifier for the request. If you don't set the client request token, Amazon Comprehend generates one.
</p>

@return A unique identifier for the request. If you don't set the client request token, Amazon Comprehend
        generates one.
aws-java-sdk-comprehend/src/main/java/com/amazonaws/services/comprehend/model/CreateEntityRecognizerRequest.java