tcp connection for dynamic client

[MaRjAn GoOdAsiAeE]

Hi all.
I'm using nas table in the database for dynamic clients. I have a proto
field in that table that can have tcp or udp value.
but the problem is that there is no proper attribute for protocol in
freeradius that i can set in dynamic_client file like
FreeRADIUS_Client_protocol or something like that.
how can I set tcp protocol for my dynamic clients?