public void setApiMode(String apiMode) {
        this.apiMode = apiMode;
    }
<p>
Indicates whether we use streaming or non-streaming APIs for the test set execution. For streaming,
StartConversation Runtime API is used. Whereas, for non-streaming, RecognizeUtterance and RecognizeText Amazon
Lex Runtime API are used.
</p>

@param apiMode
       Indicates whether we use streaming or non-streaming APIs for the test set execution. For streaming,
       StartConversation Runtime API is used. Whereas, for non-streaming, RecognizeUtterance and RecognizeText
       Amazon Lex Runtime API are used.
@see TestExecutionApiMode
aws-java-sdk-lexmodelsv2/src/main/java/com/amazonaws/services/lexmodelsv2/model/StartTestExecutionRequest.java