checking if the value of the metric is an int

[orasik]

Description

When using the OpenAI connection in a Python code, I was getting the warning

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

This is due to Azure OpenAI returning the following object in "usage"

    "usage": {
      "completion_tokens": 38,
      "prompt_tokens": 1456,
      "total_tokens": 1494,
      "completion_tokens_details": {
        "accepted_prediction_tokens": 0,
        "audio_tokens": 0,
        "reasoning_tokens": 0,
        "rejected_prediction_tokens": 0
      }

The code is adding the value of each key in usage without checking the value type, which is causing it to add a dictionary completion_tokens_details instead of avoiding it.

I just added a check to ensure it only adds int values.

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

Issue: 3910

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