public void setSignalType(String signalType) {
        this.signalType = signalType;
    }
<p>
The type of signal to send to an Automation execution.
</p>

@param signalType
       The type of signal to send to an Automation execution.
@see SignalType
aws-java-sdk-ssm/src/main/java/com/amazonaws/services/simplesystemsmanagement/model/SendAutomationSignalRequest.java