public void setUserDefined(UserDefined userDefined) {
        this.userDefined = userDefined;
    }
<p>
The structure representing User Output Resolution for a Stacking operation defined as a value and unit.
</p>

@param userDefined
       The structure representing User Output Resolution for a Stacking operation defined as a value and unit.
aws-java-sdk-sagemakergeospatial/src/main/java/com/amazonaws/services/sagemakergeospatial/model/OutputResolutionStackInput.java