public CreateInstanceConnectEndpointRequest withClientToken(String clientToken) {
        setClientToken(clientToken);
        return this;
    }
<p>
Unique, case-sensitive identifier that you provide to ensure the idempotency of the request.
</p>

@param clientToken
       Unique, case-sensitive identifier that you provide to ensure the idempotency of the request.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/CreateInstanceConnectEndpointRequest.java