Function format_headers

python/vercel-runtime/src/vercel_runtime/vc_init.py:517–530

(
    headers: Any,
    *,
    decode: bool = False,
)

def format_headers(
    headers: Any,
    *,
    decode: bool = False,
) -> dict[str, list[str]]:
    key_to_list: dict[str, list[str]] = {}
    for key, value in headers.items():
        if decode and hasattr(key, "decode") and hasattr(value, "decode"):
            key = key.decode()  # noqa: PLW2901
            value = value.decode()  # noqa: PLW2901
        if key not in key_to_list:
            key_to_list[key] = []
        key_to_list[key].append(value)
    return key_to_list


class ASGIMiddleware: