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Xiang (Sean) Zhou
798f65df86
Update existing toolsets to utilize the new toolset authentication framework. Key changes:
- McpToolset: Add _auth_config instance variable, _get_auth_headers()
method to build auth headers from exchanged credentials, and
get_auth_config() override. Auth headers are now included when
creating MCP sessions.
- OpenAPIToolset: Add _auth_config and get_auth_config() to expose
auth configuration to the framework.
- ApplicationIntegrationToolset: Add _auth_config and get_auth_config().
- APIHubToolset: Add _auth_config and get_auth_config().
When ADK resolves toolset auth before calling get_tools(), it populates exchanged_auth_credential on the auth_config. Toolsets can then use this credential when making authenticated requests.
Also update test fixtures in test_apihub_toolset.py to use real auth objects instead of mocks that fail pydantic validation.
Co-authored-by: Xiang (Sean) Zhou <seanzhougoogle@google.com>
PiperOrigin-RevId: 863764941