[BUG] Failed to calculate metrics due to exception: unsupported operand type(s) for +: 'int' and 'dict'.

[orasik]

Describe the bug
Failed to calculate metrics due to exception: unsupported operand type(s) for +: 'int' and 'dict'

This happens when using Azure OpenAI connection in a Python code.

This error is affecting grouping calls in Application Insights in Azure, and we are unable to see the flow of the request.

How To Reproduce the bug

1. Create a Python code and make sure it uses an OpenAI connection that is defined in the flow.
2. Make a request to the LLM.
3. Check logs to see the error.

Expected behavior
No warnings.

Running Information(please complete the following information):

• Promptflow Package Version using pf -v: 1.17.0
• Operating System: Mac OS 15.2 (24C101)
• Python Version using python --version: 3.10.15

[orasik]

I have raised a PR #3911

[github-actions]

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