code: @Override
      public UpdateSecurityGroupRuleDescriptionsEgressResult updateSecurityGroupRuleDescriptionsEgress(UpdateSecurityGroupRuleDescriptionsEgressRequest request) {
          request = beforeClientExecution(request);
          return executeUpdateSecurityGroupRuleDescriptionsEgress(request);
      }
docs: <p>
  [VPC only] Updates the description of an egress (outbound) security group rule. You can replace an existing
  description, or add a description to a rule that did not have one previously.
  </p>
  <p>
  You specify the description as part of the IP permissions structure. You can remove a description for a security
  group rule by omitting the description parameter in the request.
  </p>
  
  @param updateSecurityGroupRuleDescriptionsEgressRequest
  @return Result of the UpdateSecurityGroupRuleDescriptionsEgress operation returned by the service.
  @sample AmazonEC2.UpdateSecurityGroupRuleDescriptionsEgress
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/UpdateSecurityGroupRuleDescriptionsEgress"
  target="_top">AWS API Documentation</a>