public OptionVersion withIsDefault(Boolean isDefault) {
        setIsDefault(isDefault);
        return this;
    }
<p>
Indicates whether the version is the default version of the option.
</p>

@param isDefault
       Indicates whether the version is the default version of the option.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/OptionVersion.java