lookup_sync

Description:

public bool lookup_sync (Source source, Cancellable? cancellable, out NamedParameters out_credentials) throws Error

Looks up the credentials for source.

If an error occurs, the function sets error and returns false.

this	an SourceCredentialsProvider
source	an Source, to lookup credentials for
cancellable	optional Cancellable object, or `null`
out_credentials	return location for the credentials

true on success, false on error