The volume size, in gigabytes. Valid values: If the volume type is io1, the minimum size of the volume is 10. Default: If you're
            creating the volume from a snapshot, and you don't specify a volume size, the default is the snapshot size. Required: Required when the
            volume type is io1.
             
            
Constraints:
 Declaration Syntax
 Declaration Syntax| C# | 
public int VolumeSize { get; set; }