public void setRegionName(String regionName) {
        this.regionName = regionName;
    }
<p>
Specifies the Region-code for a given Region name (for example, <code>af-south-1</code>). This function will
return the status of whatever Region you pass into this parameter.
</p>

@param regionName
       Specifies the Region-code for a given Region name (for example, <code>af-south-1</code>). This function
       will return the status of whatever Region you pass into this parameter.
aws-java-sdk-account/src/main/java/com/amazonaws/services/account/model/GetRegionOptStatusRequest.java