@deftypefun {size_t} {gnutls_record_overhead_size} (gnutls_session_t @var{session})
@var{session}: is @code{gnutls_session_t} 

This function will return the size in bytes of the overhead
due to TLS (or DTLS) per record. On certain occasions
(e.g., CBC ciphers) the returned value is the maximum
possible overhead.

@strong{Since:} 3.2.2
@end deftypefun