Python: [BREAKING] Renamed async_credential to credential

[dmytrostruk]

Motivation and Context

Resolves: #1993

Renamed async_credential parameter in several chat clients to credential to make it shorter and for consistency between different providers.

Contribution Checklist

• The code builds clean without any errors or warnings
• The PR follows the Contribution Guidelines
• All unit tests pass, and I have added new tests where possible
• Is this a breaking change? If yes, add "[BREAKING]" prefix to the title of the PR.

[markwallace-microsoft]

Python Test Coverage Report •

File	Stmts	Miss	Cover	Missing
packages/azure-ai/agent_framework_azure_ai
_chat_client.py	414	79	80%	296, 525–526, 528, 531, 534–539, 541, 549, 561–563, 567, 570–571, 579–582, 592, 600–603, 605–606, 608–609, 616, 624–625, 633–634, 639–640, 644–651, 656–657, 665, 671, 679–681, 684, 706–707, 769, 784, 796–800, 827–829, 832–833, 891–896, 917, 958, 967, 993
_client.py	164	30	81%	174–177, 181–182, 184, 225, 227–230, 232, 369–372, 376, 378–379, 381–389, 391
TOTAL	16230	2540	84%

Python Unit Test Overview

Tests	Skipped	Failures	Errors	Time
2322	130 💤	0 ❌	0 🔥	58.789s ⏱️

[Copilot]

Pull request overview

This PR implements a breaking change that renames the async_credential parameter to credential across Azure AI chat clients (AzureAIClient and AzureAIAgentClient) for improved consistency and brevity. The change affects the core implementation, all sample code, tests, and documentation.

Key Changes

• Renamed async_credential parameter to credential in AzureAIClient and AzureAIAgentClient constructors
• Updated all sample files to use the new parameter name
• Updated test files and documentation to reflect the change

Reviewed changes

Copilot reviewed 65 out of 65 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
python/packages/azure-ai/agent_framework_azure_ai/_client.py	Updated AzureAIClient.__init__ parameter from async_credential to credential, including docstrings and internal references
python/packages/azure-ai/agent_framework_azure_ai/_chat_client.py	Updated AzureAIAgentClient.__init__ parameter from async_credential to credential, including docstrings and internal references
python/packages/azure-ai/tests/test_azure_ai_client.py	Updated test cases to use credential parameter in all client instantiations and updated related docstrings
python/packages/azure-ai/tests/test_azure_ai_agent_client.py	Updated test cases to use credential parameter in all client instantiations and updated related docstrings
python/samples/getting_started/agents/azure_ai/*.py (15 files)	Updated all Azure AI agent samples to use the new credential parameter
python/samples/getting_started/agents/azure_ai_agent/*.py (10 files)	Updated all Azure AI agent client samples to use the new credential parameter
python/samples/getting_started/middleware/*.py (9 files)	Updated middleware samples to use the new credential parameter
python/samples/getting_started/context_providers/**/*.py (6 files)	Updated context provider samples to use the new credential parameter
python/samples/getting_started/workflows/agents/*.py (2 files)	Updated workflow samples to use the new credential parameter
python/samples/getting_started/threads/suspend_resume_thread.py	Updated thread management sample to use the new credential parameter
python/samples/getting_started/chat_client/azure_ai_chat_client.py	Updated chat client sample to use the new credential parameter
python/samples/getting_started/declarative/*.py (2 files)	Updated declarative agent samples to use the new credential parameter
python/samples/getting_started/devui/foundry_agent/agent.py	Updated DevUI sample to use the new credential parameter
python/samples/semantic-kernel-migration/azure_ai_agent/*.py (3 files)	Updated Semantic Kernel migration samples to use the new credential parameter, also improved async context manager formatting
python/samples/demos/workflow_evaluation/create_workflow.py	Updated workflow evaluation demo to use the new credential parameter, includes additional code formatting improvements
python/packages/lab/gaia/samples/azure_ai_agent.py	Updated GAIA sample to use the new credential parameter
python/samples/getting_started/context_providers/azure_ai_search/README.md	Updated README documentation to show the new credential parameter