To ignore certain error classes within traces when auto-instrumenting LangChain, you can use a custom error handling approach. According to the <https://docs.arize.com/phoenix/tracing/how-to-tracing/customize-spans/filtering-spans|Phoenix documentation>, you can define a custom `FilterProcessor` to filter out spans based on specific criteria, such as error types. This allows you to selectively suppress instrumentation on specific calls or errors.
Would you like more details on how to implement this?
Sources:
- <https://docs.arize.com/phoenix/tracing/how-to-tracing/customize-spans/filtering-spans|Phoenix documentation>