@Override
    public DescribeRegionsResult describeRegions() {
        return describeRegions(new DescribeRegionsRequest());
    }
<p>
Describes the Regions that are enabled for your account, or all Regions.
</p>
<p>
For a list of the Regions supported by Amazon EC2, see <a
href="https://docs.aws.amazon.com/ec2/latest/devguide/ec2-endpoints.html">Amazon EC2 service endpoints</a>.
</p>
<p>
For information about enabling and disabling Regions for your account, see <a
href="https://docs.aws.amazon.com/accounts/latest/reference/manage-acct-regions.html">Specify which Amazon Web
Services Regions your account can use</a> in the <i>Amazon Web Services Account Management Reference Guide</i>.
</p>
<note>
<p>
The order of the elements in the response, including those within nested structures, might vary. Applications
should not assume the elements appear in a particular order.
</p>
</note>

@param describeRegionsRequest
@return Result of the DescribeRegions operation returned by the service.
@sample AmazonEC2.DescribeRegions
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/DescribeRegions" target="_top">AWS API
     Documentation</a>
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/AmazonEC2Client.java