func WithTemplatesFromStrings(ts map[string][]string) Option {
	return func(o *Options) {
		for name, strings := range ts {
			o.strings[name] = strings
		}
	}
}
func WithTemplatesFromStrings(ts map[string][]string) Option {
	return func(o *Options) {
		for name, strings := range ts {
			o.strings[name] = strings
		}
	}
}
// WithTemplatesFromStrings adds a map of templates parsed from strings.