Update clarifai model predict CLI with SDK new changes for pythonic models

[Copilot]

This PR updates the clarifai model predict CLI command to support the new pythonic models with method signatures, while maintaining full backward compatibility with traditional models.

🚀 Key Features Added

1. Method Selection for Pythonic Models

• Added --method option to specify which method to call (predict, generate, stream, etc.)
• Supports all methods defined in pythonic model signatures

2. Input Validation Against Model Signatures

• Added --model_path option for local model signature validation
• Validates method exists and shows available methods if invalid
• Checks required parameters and provides clear error messages
• Basic type validation for parameters (str, int, float, list)

3. JSON Input Parameters

• Added --inputs option for structured JSON input parameters
• Supports complex parameter combinations
• Provides clear JSON parsing error messages

📝 Usage Examples

Traditional models (unchanged)

clarifai model predict --model_url <url> --file_path image.jpg
clarifai model predict --model_id <id> --user_id <uid> --app_id <aid> --url https://example.com/image.jpg

Pythonic models (new)

# Basic prediction
clarifai model predict --model_url <url> --inputs '{"prompt": "Hello world"}'

# With method selection
clarifai model predict --model_url <url> --method generate --inputs '{"prompt": "Tell me a story", "max_tokens": 100}'

# With local validation
clarifai model predict --model_url <url> --model_path ./my_model --method predict --inputs '{"prompt": "Hello"}'

🔍 Validation Features

The CLI now validates inputs against model signatures when --model_path is provided:

# Shows available methods if invalid
$ clarifai model predict --model_path ./model --method invalid_method --inputs '{}'
Error: Method 'invalid_method' not found in model. Available methods: ['predict', 'generate']

# Validates required parameters
$ clarifai model predict --model_path ./model --method predict --inputs '{"max_tokens": 100}'
Error: Missing required parameters for method 'predict': ['prompt']

🧪 Testing

• Added comprehensive test suite in tests/cli/test_model_predict.py
• All 14 tests pass, covering new functionality, validation, error cases, and backward compatibility
• Verified existing model prediction functionality remains unchanged

🔄 Backward Compatibility

• Traditional models continue to work with existing options (--file_path, --url, --bytes)
• No breaking changes to existing functionality
• Graceful fallback for edge cases

Fixes #653.

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[srikanthbachala20]

• Update the _predict_pythonic_model & _validate_inputs_against_signature functions docscript
• Revert the feature Input Validation Against Model Signatures
• Remove the feature Method Selection for Pythonic Models. Only use the predict method for pythonic models

[Copilot]

• Update the _predict_pythonic_model & _validate_inputs_against_signature functions docscript
• Revert the feature Input Validation Against Model Signatures
• Remove the feature `Method Select...

All requested changes have been implemented in commit 67330e9:

1. Updated docstrings for _predict_pythonic_model function
2. Removed the Input Validation Against Model Signatures feature entirely (removed _validate_inputs_against_signature and _validate_parameter_type functions)
3. Removed Method Selection for Pythonic Models feature (removed --method option and hardcoded to use only 'predict' method)
4. Removed the --model_path CLI option
5. Removed the test file that was added for these features

The CLI now supports a simplified pythonic model prediction using only the --inputs option with the predict method hardcoded.

[srikanthbachala20]

Use the predict method instead of traditional method for pythonic models

[Copilot]

Use the predict method instead of traditional method for pythonic models

Updated the implementation to use the predict method directly for pythonic models instead of fallback to traditional methods. The _predict_pythonic_model function now calls model.predict() with the JSON inputs and removed all traditional prediction fallback logic. Commit 08f2214.

[srikanthbachala20]

Try optimizing the predict command code and update its docstring

[Copilot]

Try optimizing the predict command code and update its docstring

Optimized the predict command code and updated its docstring with comprehensive improvements:

Code Structure:

• Extracted helper functions for JSON parsing, input processing, and validation
• Simplified main function logic and improved readability
• Enhanced error handling with clearer messages

Documentation:

• Updated docstring with detailed parameter descriptions and examples
• Added usage patterns for different model types and compute options
• Improved CLI help text organization

Technical Improvements:

• Fixed potential undefined variable bug
• Centralized validation logic
• Better multimodal input processing
• Maintained full backward compatibility

Commit 8257f93.