Nova Sonic 2 support for BidiAgent

[lanazhang]

Description

Update BidiAgent to support Nova Sonic both v1 and v2 models

Documentation PR

1. BidiNovaSonicModel support both Nova Sonic 1 and 2 model_ids
2. Support v2 turn_taking parameter
3. Support v2 text input (with event parameter value update required by v2)
4. Tested the async tool call functioning well in the current version

Type of Change

New feature

Testing

How have you tested the change? Verify that the changes do not break functionality or introduce warnings in consuming repositories: agents-docs, agents-tools, agents-cli

• I ran hatch run prepare

Checklist

• I have read the CONTRIBUTING document
• I have added any necessary tests that prove my fix is effective or my feature works
• I have updated the documentation accordingly
• I have added an appropriate example to the documentation to outline the feature, or no new docs are needed
• My changes generate no new warnings
• Any dependent changes have been merged and published

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[lanazhang]

Addressed feedbacks in new commits. Please take a look.

[strands-agent]

In src/strands/experimental/bidi/models/nova_sonic.py at line 855, import copy is inside _truncate_audio_bytes_for_logging(), which will be called frequently during streaming. Move it to the top-level imports:

import asyncio
import base64
import copy
import json
import logging
import uuid

Then remove line 855 from the method body. This avoids repeated import overhead during event processing.

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[pgrayy]

For bidi, you can run hatch run bidi:prepare to help with lint checks.

[lanazhang]

Removed empty lines. Passed test suite.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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