Function python312_extract_calls 

pub fn python312_extract_calls(
    tok_types: &str,
    tok_starts: &str,
    tok_lens: &str,
    out_calls: &str,
    out_call_counts: &str,
    out_kwargs: &str,
    out_kw_counts: &str,
    haystack_len: u32,
) -> Program

Extract Python call sites plus top-level keyword arguments.