code: @Override
      public DisassociateSubnetCidrBlockResult disassociateSubnetCidrBlock(DisassociateSubnetCidrBlockRequest request) {
          request = beforeClientExecution(request);
          return executeDisassociateSubnetCidrBlock(request);
      }
docs: <p>
  Disassociates a CIDR block from a subnet. Currently, you can disassociate an IPv6 CIDR block only. You must
  detach or delete all gateways and resources that are associated with the CIDR block before you can disassociate
  it.
  </p>
  
  @param disassociateSubnetCidrBlockRequest
  @return Result of the DisassociateSubnetCidrBlock operation returned by the service.
  @sample AmazonEC2.DisassociateSubnetCidrBlock
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/DisassociateSubnetCidrBlock"
  target="_top">AWS API Documentation</a>