-record(builder, {
    handler :: fun((gleam@http@request:request(fun(() -> {ok, fcgi:read()} |
        {error, fcgi:read_error()})), fcgi:context()) -> gleam@http@response:response(fcgi:response_data())),
    address :: any(),
    max_body_size :: integer(),
    body_read_timeout_ms :: integer()
}).