public RegionDescription withRegionType(RegionType regionType) {
        this.regionType = regionType.toString();
        return this;
    }
<p>
Specifies whether the Region is the primary Region or an additional Region.
</p>

@param regionType
       Specifies whether the Region is the primary Region or an additional Region.
@return Returns a reference to this object so that method calls can be chained together.
@see RegionType
aws-java-sdk-directory/src/main/java/com/amazonaws/services/directory/model/RegionDescription.java