public void setControl(String control) {
        this.control = control;
    }
<p>
The data attached to the event that can be used by the decider in subsequent workflow tasks.
</p>

@param control
       The data attached to the event that can be used by the decider in subsequent workflow tasks.
aws-java-sdk-simpleworkflow/src/main/java/com/amazonaws/services/simpleworkflow/model/RequestCancelExternalWorkflowExecutionDecisionAttributes.java