fix: anthropic provider on raw message

[teocns]

🔍 Review Summary

Purpose:
Enhance reliability and response handling logic in the AnthropicProvider class within the agentops/llms/anthropic.py file.

Key Changes:

• Refactor: Reorganized import statements for improved clarity and moved import json to the top. Improved response handling logic to correctly parse and log data for APIResponse and LegacyAPIResponse types.
• Enhancement: Enhanced logic to handle different response structures, including extracting model and token usage information.
• Style: Made minor formatting changes for better code readability and maintainability.

Impact:
Improves the reliability of the AnthropicProvider class by ensuring correct parsing and logging of response data and enhancing the handling of different response structures.

Original Description

No existing description found

[codecov]

Codecov Report

Attention: Patch coverage is 11.53846% with 23 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
agentops/llms/anthropic.py	11.53%	23 Missing ⚠️

Flag	Coverage Δ
unittests	54.77% <11.53%> (-0.17%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
agentops/llms/anthropic.py	11.29% <11.53%> (-0.29%)	⬇️

[teocns]

Blocked by #510

Only static analysis checks are failing (black); free to merge afterwards

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Edit 17/11
Free to merge

[areibman]

Need to ask @the-praxs to double check this but looks good

[the-praxs]

Minor changes needed.

I would remove requirement for the Bedrock and Vertex clients. But we can add support for them in a different PR.

[the-praxs]