    # File lib/fog/aws/requests/compute/create_volume.rb, line 26
            def create_volume(availability_zone, size, snapshot_id = nil)
              request(
                'Action'            => 'CreateVolume',
                'AvailabilityZone'  => availability_zone,
                'Size'              => size,
                'SnapshotId'        => snapshot_id,
                :parser             => Fog::Parsers::Compute::AWS::CreateVolume.new
              )
            end