endpoint - The endpoint of the Region (for example,
ec2.us-east-1.amazonaws.com).
opt-in-status - The opt-in status of the Region
(opt-in-not-required | opted-in | not-opted-in).
region-name - The name of the Region (for example, us-east-1).
RegionNames
The names of the Regions. You can specify any Regions, whether they are
enabled and disabled for your account.
DryRun
Checks whether you have the required permissions for the action, without
actually making the request, and provides an error response. If you have
the required permissions, the error response is DryRunOperation.
Otherwise, it is UnauthorizedOperation.
AllRegions
Indicates whether to display all Regions, including Regions that are
disabled for your account.