public OptionGroup withSourceAccountId(String sourceAccountId) {
        setSourceAccountId(sourceAccountId);
        return this;
    }
<p>
Specifies the Amazon Web Services account ID for the option group from which this option group is copied.
</p>

@param sourceAccountId
       Specifies the Amazon Web Services account ID for the option group from which this option group is copied.
@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/OptionGroup.java