public UpgradeHistory withUpgradeName(String upgradeName) {
        setUpgradeName(upgradeName);
        return this;
    }
<p>
A string that describes the upgrade.
</p>

@param upgradeName
       A string that describes the upgrade.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-opensearch/src/main/java/com/amazonaws/services/opensearch/model/UpgradeHistory.java