public UpdateSecurityGroupRuleDescriptionsEgressRequest withGroupName(String groupName) {
        setGroupName(groupName);
        return this;
    }
<p>
[Default VPC] The name of the security group. You must specify either the security group ID or the security group
name.
</p>

@param groupName
       [Default VPC] The name of the security group. You must specify either the security group ID or the
       security group name.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/UpdateSecurityGroupRuleDescriptionsEgressRequest.java