Converts each model entry in an R list to a Python tuple as expected by
cat_stack's normalize_model_input(). Handles both 3-element character
vectors and 4-element lists (with options dict).
Arguments
- models
An R list where each element is either:
A 3-element character vector: c("gpt-4o", "openai", "sk-...")
A 4-element list: list("gpt-4o", "openai", "sk-...", list(creativity = 0.5))
A plain character vector (single model, shorthand): c("gpt-4o", "openai", "sk-...")
Value
A Python list of tuples.