VPC endpoint state value parsing is incorrect

Transfered from awslabs/aws-sdk-rust: https://github.com/awslabs/aws-sdk-rust/issues/619

Describe the bug

VPC endpoint state values when parsed from their text representation are incorrect. The reason is that code expect them to be in PascalCase, while in fact they are camelCase. As a result all the values are getting classified as State::Unknown("xxx").

For example

pendingAcceptance is expected to be PendingAcceptance available is expected to be Available etc

Expected Behavior

When running reproduction code below I expect the next output

Some(
    PendingAcceptance,
),
Some(
    Available
)

Current Behavior

Instead every possible VPC endpoint state in describe_vpc_endpoints() is showed as State::Unknown("text")

Some(
    Unknown(
        "pendingAcceptance",
    ),
)
Some(
    Unknown(
        "available",
    ),
)

Reproduction Steps

If you have at least one VPC endpoint

use aws_sdk_ec2 as ec2;

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    let shared_config = aws_config::load_from_env().await;
    ec2::Client::new(&shared_config)
        .describe_vpc_endpoints()
        .send()
        .await?
        .vpc_endpoints
        .unwrap_or_default()
        .into_iter()
        .for_each(|ep| println!("{:#?}", ep.state()));
    Ok(())
}

Possible Solution

diff --git a/sdk/ec2/src/model.rs b/sdk/ec2/src/model.rs
index 916c9ee62..30ba20e6a 100644
--- a/sdk/ec2/src/model.rs
+++ b/sdk/ec2/src/model.rs
@@ -68004,14 +68004,14 @@ pub enum State {
 impl std::convert::From<&str> for State {
     fn from(s: &str) -> Self {
         match s {
-            "Available" => State::Available,
-            "Deleted" => State::Deleted,
-            "Deleting" => State::Deleting,
-            "Expired" => State::Expired,
-            "Failed" => State::Failed,
-            "Pending" => State::Pending,
-            "PendingAcceptance" => State::PendingAcceptance,
-            "Rejected" => State::Rejected,
+            "available" => State::Available,
+            "deleted" => State::Deleted,
+            "deleting" => State::Deleting,
+            "expired" => State::Expired,
+            "failed" => State::Failed,
+            "pending" => State::Pending,
+            "pendingAcceptance" => State::PendingAcceptance,
+            "rejected" => State::Rejected,
             other => State::Unknown(other.to_owned()),
         }
     }
@@ -68027,28 +68027,28 @@ impl State {
     /// Returns the `&str` value of the enum member.
     pub fn as_str(&self) -> &str {
         match self {
-            State::Available => "Available",
-            State::Deleted => "Deleted",
-            State::Deleting => "Deleting",
-            State::Expired => "Expired",
-            State::Failed => "Failed",
-            State::Pending => "Pending",
-            State::PendingAcceptance => "PendingAcceptance",
-            State::Rejected => "Rejected",
+            State::Available => "available",
+            State::Deleted => "deleted",
+            State::Deleting => "deleting",
+            State::Expired => "expired",
+            State::Failed => "failed",
+            State::Pending => "pending",
+            State::PendingAcceptance => "pendingAcceptance",
+            State::Rejected => "rejected",
             State::Unknown(s) => s.as_ref(),
         }
     }
     /// Returns all the `&str` values of the enum members.
     pub fn values() -> &'static [&'static str] {
         &[
-            "Available",
-            "Deleted",
-            "Deleting",
-            "Expired",
-            "Failed",
-            "Pending",
-            "PendingAcceptance",
-            "Rejected",
+            "available",
+            "deleted",
+            "deleting",
+            "expired",
+            "failed",
+            "pending",
+            "pendingAcceptance",
+            "rejected",
         ]
     }
 }

Additional Information/Context

No response

Version

├── aws-config v0.48.0
│   ├── aws-http v0.48.0
│   │   ├── aws-smithy-http v0.48.0
│   │   │   ├── aws-smithy-types v0.48.0
│   │   ├── aws-smithy-types v0.48.0 (*)
│   │   ├── aws-types v0.48.0
│   │   │   ├── aws-smithy-async v0.48.0
│   │   │   ├── aws-smithy-client v0.48.0
│   │   │   │   ├── aws-smithy-async v0.48.0 (*)
│   │   │   │   ├── aws-smithy-http v0.48.0 (*)
│   │   │   │   ├── aws-smithy-http-tower v0.48.0
│   │   │   │   │   ├── aws-smithy-http v0.48.0 (*)
│   │   │   │   ├── aws-smithy-types v0.48.0 (*)
│   │   │   ├── aws-smithy-http v0.48.0 (*)
│   │   │   ├── aws-smithy-types v0.48.0 (*)
│   ├── aws-sdk-sso v0.18.0
│   │   ├── aws-endpoint v0.48.0
│   │   │   ├── aws-smithy-http v0.48.0 (*)
│   │   │   ├── aws-smithy-types v0.48.0 (*)
│   │   │   ├── aws-types v0.48.0 (*)
│   │   ├── aws-http v0.48.0 (*)
│   │   ├── aws-sig-auth v0.48.0
│   │   │   ├── aws-sigv4 v0.48.0
│   │   │   │   ├── aws-smithy-http v0.48.0 (*)
│   │   │   ├── aws-smithy-http v0.48.0 (*)
│   │   │   ├── aws-types v0.48.0 (*)
│   │   ├── aws-smithy-async v0.48.0 (*)
│   │   ├── aws-smithy-client v0.48.0 (*)
│   │   ├── aws-smithy-http v0.48.0 (*)
│   │   ├── aws-smithy-http-tower v0.48.0 (*)
│   │   ├── aws-smithy-json v0.48.0
│   │   │   └── aws-smithy-types v0.48.0 (*)
│   │   ├── aws-smithy-types v0.48.0 (*)
│   │   ├── aws-types v0.48.0 (*)
│   ├── aws-sdk-sts v0.18.0
│   │   ├── aws-endpoint v0.48.0 (*)
│   │   ├── aws-http v0.48.0 (*)
│   │   ├── aws-sig-auth v0.48.0 (*)
│   │   ├── aws-smithy-async v0.48.0 (*)
│   │   ├── aws-smithy-client v0.48.0 (*)
│   │   ├── aws-smithy-http v0.48.0 (*)
│   │   ├── aws-smithy-http-tower v0.48.0 (*)
│   │   ├── aws-smithy-query v0.48.0
│   │   │   ├── aws-smithy-types v0.48.0 (*)
│   │   ├── aws-smithy-types v0.48.0 (*)
│   │   ├── aws-smithy-xml v0.48.0
│   │   ├── aws-types v0.48.0 (*)
│   ├── aws-smithy-async v0.48.0 (*)
│   ├── aws-smithy-client v0.48.0 (*)
│   ├── aws-smithy-http v0.48.0 (*)
│   ├── aws-smithy-http-tower v0.48.0 (*)
│   ├── aws-smithy-json v0.48.0 (*)
│   ├── aws-smithy-types v0.48.0 (*)
│   ├── aws-types v0.48.0 (*)
├── aws-sdk-ec2 v0.18.0
│   ├── aws-endpoint v0.48.0 (*)
│   ├── aws-http v0.48.0 (*)
│   ├── aws-sig-auth v0.48.0 (*)
│   ├── aws-smithy-async v0.48.0 (*)
│   ├── aws-smithy-client v0.48.0 (*)
│   ├── aws-smithy-http v0.48.0 (*)
│   ├── aws-smithy-http-tower v0.48.0 (*)
│   ├── aws-smithy-query v0.48.0 (*)
│   ├── aws-smithy-types v0.48.0 (*)
│   ├── aws-smithy-xml v0.48.0 (*)
│   ├── aws-types v0.48.0 (*)
├── aws-types v0.48.0 (*)



### Environment details (OS name and version, etc.)

macOS Monterey

### Logs

_No response_

aws / aws-sdk