endpoint - The endpoint of the region (for example,
ec2.us-east-1.amazonaws.com).
region-name - The name of the region (for example, us-east-1).
RegionNames
The names of one or more regions.
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.