Keep beginning braces in one line

[vkatsuba]

Currently, formatter add new like and try keep braces at the same like with items, fields:
Record

-record(z_msg_v1,
        {qos = 0 :: 0 | 1 | 2,
         dup = false :: boolean()
}

Maps

-define(xxx,
        #{
            a => 1
            b => 2
        }).

I would like it to be formatted like:
Record

-record(z_msg_v1, {
        qos = 0 :: 0 | 1 | 2,
        dup = false :: boolean()
}

Maps

-define(xxx, #{
        a => 1
        b => 2
 }).

I suppose it would be great to add additional rule like: keep_braces_at_line => true or similar.

Regards,
--V