raise_if_not_ready(
error: httpx.HTTPStatusError,
name: str,
) -> NoneRaise SandboxNotReadyError when the API rejected a proxy-config update.
A proxy config can only be written to a ready sandbox, and that status
check is the sole source of InvalidRequest on the update endpoint for the
fields this client sends — a typed error lets callers start the sandbox and
retry instead of matching on status codes.