code: @Override
      public java.util.concurrent.Future<DescribeSecurityGroupsResult> describeSecurityGroupsAsync(
              com.amazonaws.handlers.AsyncHandler<DescribeSecurityGroupsRequest, DescribeSecurityGroupsResult> asyncHandler) {
  
          return describeSecurityGroupsAsync(new DescribeSecurityGroupsRequest(), asyncHandler);
      }
docs: Simplified method form for invoking the DescribeSecurityGroups operation with an AsyncHandler.
  
  @see #describeSecurityGroupsAsync(DescribeSecurityGroupsRequest, com.amazonaws.handlers.AsyncHandler)