API version management

When integrating with external APIs, explicitly handle version differences and use parameterized configurations instead of hardcoded values. Different API versions often require different request methods, endpoints, or parameters, so version-specific logic should be clearly defined to prevent incorrect API calls.

Key practices:

• Maintain explicit lists of models/versions that require specific API handling
• Use configuration files with fallback defaults for version-dependent parameters
• Route requests to appropriate endpoints based on version detection
• Separate test cases for different API versions when they have different interfaces

Example of explicit version handling:

# Good: Explicit version handling
if self.api_model in ["claude-instant", "claude-2", "claude-2.1"]:
    # Use completions.create() for older models
    response = client.completions.create(...)
else:
    # Use messages.create() for Claude-3 family
    response = client.messages.create(...)

Example of parameterized configuration:

# Good: Parameterized with fallback
api_version = cfg.get("OPENAI_API_VERSION", "2024-02-01")
self.client = AzureOpenAI(
    api_key=cfg["AZURE_OPENAI_API_KEY"], 
    azure_endpoint=cfg["AZURE_OPENAI_ENDPOINT"], 
    api_version=api_version
)

# Avoid: Hardcoded version
self.client = AzureOpenAI(..., api_version="2024-02-01")

This approach prevents API compatibility issues, makes version updates easier to manage, and ensures the correct API interface is used for each version.