aws-sdk-go-v2 Enum values for `VpcEndpoint.State` doesn't match the values that `DescribeVpcEndpoints` returns

Confirm by changing [ ] to [x] below to ensure that it's a bug:

[x] I've gone though Developer Guide and API reference
[x] I've checked AWS Forums and StackOverflow for answers
[x] I've searched for previous similar issues and didn't find any solution

Describe the bug The enum values for the State field in ec2.VpcEndpoint (StatePendingAcceptance, StatePending, StateAvailable, StateDeleting, StateRejected, StateFailed & StateExpired) don't match the actual values returned when performing DescribeVpcEndpoints. The returned value has the first character is always lower case but the enum values in this SDK has them as uppercase.

Version of AWS SDK for Go? v1.27.1, although the problem still exists in master

Version of Go (go version)? N/A

To Reproduce (observed behavior) Perform ec2:DescribeVpcEndpoints and observe the values of the State attribute returned in the response. See if those values match the enum values in State...

Expected behavior The State... enum values should match what is returned by DescribeVpcEndpoints, just like the InstanceLifecycleType enum matches the value returned for the InstanceLifecycle attribute in the ec2:DescribeInstances

Additional context

Sep 23 '20 08:09 wjam

Hi, Sorry for the lack of response here, you are right I can reproduce this inconsistency.

Aug 25 '21 23:08 KaibaLopez

This is an issue with the service not correctly modeling and using the enum values they have modeled. This is evident in a captured wire dump of the response. Transferring to aws-sdk repository for further follow-up.