a glib.ByteArray which holds the DER encoded issuer DN.
used to interact with the user if necessary
Flags which affect the lookup operation.
a gio.Cancellable, or NULL
callback to call when the operation completes
the data to pass to the callback function
2.30
Asynchronously look up certificates issued by this issuer in the database. See TlsDatabase.lookupCertificatesIssuedBy for more information.
The database may choose to hold a reference to the issuer byte array for the duration of of this asynchronous operation. The byte array should not be modified during this time.