public void setTestExecutionModality(String testExecutionModality) {
        this.testExecutionModality = testExecutionModality;
    }
<p>
Indicates whether audio or text is used.
</p>

@param testExecutionModality
       Indicates whether audio or text is used.
@see TestExecutionModality
aws-java-sdk-lexmodelsv2/src/main/java/com/amazonaws/services/lexmodelsv2/model/StartTestExecutionRequest.java