Describes regions that are currently available to
            the account.
            
 Declaration Syntax
 Declaration Syntax| C# | 
DescribeRegionsResponse DescribeRegions( DescribeRegionsRequest request )
 Parameters
 Parameters- request (DescribeRegionsRequest)
- Describe Regions request
 Return Value
 Return ValueDescribe Regions  Response from the service
 Exceptions
 Exceptions| Exception | Condition | 
|---|---|
| WebException | |
| AmazonEC2Exception |