The timeout applied to all resolver lookups, in milliseconds.
This may be changed through the lifetime of the #GResolver. The new value will apply to any lookups started after the change, but not to any already-ongoing lookups.
If this is 0, no timeout is applied to lookups.
No timeout was applied to lookups before this property was added in GLib 2.78.
Builder instance for fluent chaining
Set timeout property.