Utility classes and functions including error types, environment helpers, and thread pool executors.
An error occurred while communicating with the LangSmith API.
Internal server error while communicating with LangSmith.
User error caused an exception when communicating with LangSmith.
Couldn't authenticate with the LangSmith API.
Couldn't find the requested resource.
The resource already exists.
Couldn't connect to the LangSmith API.
You have exceeded the rate limit for the LangSmith API.
Client took too long to send request body.
ThreadPoolExecutor that copies the context to the child thread.
