code: @Override
      public CreateDefaultVpcResult createDefaultVpc(CreateDefaultVpcRequest request) {
          request = beforeClientExecution(request);
          return executeCreateDefaultVpc(request);
      }
docs: <p>
  Creates a default VPC with a size <code>/16</code> IPv4 CIDR block and a default subnet in each Availability
  Zone. For more information about the components of a default VPC, see <a
  href="https://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/default-vpc.html">Default VPC and Default
  Subnets</a> in the <i>Amazon Virtual Private Cloud User Guide</i>. You cannot specify the components of the
  default VPC yourself.
  </p>
  <p>
  If you deleted your previous default VPC, you can create a default VPC. You cannot have more than one default VPC
  per Region.
  </p>
  <p>
  If your account supports EC2-Classic, you cannot use this action to create a default VPC in a Region that
  supports EC2-Classic. If you want a default VPC in a Region that supports EC2-Classic, see
  "I really want a default VPC for my existing EC2 account. Is that possible?" in the <a
  href="http://aws.amazon.com/vpc/faqs/#Default_VPCs">Default VPCs FAQ</a>.
  </p>
  
  @param createDefaultVpcRequest
  @return Result of the CreateDefaultVpc operation returned by the service.
  @sample AmazonEC2.CreateDefaultVpc
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/CreateDefaultVpc" target="_top">AWS API
  Documentation</a>