@deftypefun {int} {gnutls_x509_trust_list_remove_trust_mem} (gnutls_x509_trust_list_t @var{list}, const gnutls_datum_t * @var{cas}, gnutls_x509_crt_fmt_t @var{type})
@var{list}: The list

@var{cas}: A buffer containing a list of CAs (optional)

@var{type}: The format of the certificates

This function will remove the provided certificate authorities
from the trusted list, and add them into a black list when needed. 

See also @code{gnutls_x509_trust_list_remove_cas()} .

@strong{Returns:} The number of removed elements is returned.

@strong{Since:} 3.1.10
@end deftypefun