Args:
        input: Model input parameters including version or model details
        confirmed: Whether the user has explicitly confirmed the generation

    Returns:
        Prediction details if confirmed, or a confirmation request if not
    

    Args:
        payload: The webhook payload to verify
        signature: The signature from the X-Replicate-Signature header
        secret: The webhook signing secret from get_webhook_secret

    Returns:
        True if signature is valid, False otherwise
    

    Args:
        query: Search query describing the desired model
        style: Optional style to filter by

    Returns:
        List of matching models with scores
    

    Args:
        model_id: Model identifier in format owner/name

    Returns:
        Detailed model information
    

    Args:
        image_url: URL of the image to open

    Returns:
        Dict containing status of the operation