public String getExpressionType() {
        return this.expressionType;
    }
<p>
The type of value in <code>Expression</code>.
</p>

@return The type of value in <code>Expression</code>.
@see ExpressionType
aws-java-sdk-iotwireless/src/main/java/com/amazonaws/services/iotwireless/model/Destinations.java