Virtualvfunc_Gets the default Gio.TlsDatabase used to verify TLS connections.
Virtualvfunc_Checks if DTLS is supported. DTLS support may not be available even if TLS support is available, and vice-versa.
Virtualvfunc_Checks if TLS is supported; if this returns false for the default
Gio.TlsBackend, it means no "real" TLS backend is available.
Interface for implementing TlsBackend. Contains only the virtual methods that need to be implemented.