type github.com/jackc/pgconn.LookupFunc

3 uses

	github.com/jackc/pgconn (current package)
		config.go#L40: 	LookupFunc     LookupFunc // e.g. net.Resolver.LookupHost
		pgconn.go#L48: type LookupFunc func(ctx context.Context, host string) (addrs []string, err error)
		pgconn.go#L178: func expandWithIPs(ctx context.Context, lookupFn LookupFunc, fallbacks []*FallbackConfig) ([]*FallbackConfig, error) {