Sets the certificate to be used by this's connection when a client certificate is
requested during the TLS handshake.
You can call this as a response to [signal@Message:SoupMessage:request-certificate] signal, or before the connection is
started. If certificate is null the handshake will continue without providing a
GTlsCertificate. Note that the [class@Gio.TlsCertificate] set by this function will be ignored if [property@Session:tls-interaction] is
not null.
| this |
a Message |
| certificate |
the TlsCertificate to set, or null |