hl property
The hl parameter instructs the API to retrieve localized resource
metadata for a specific[application language that the YouTube website
supports. The parameter value must be a language code included in the list
returned by the i18nLanguages.list method.
string
If localized resource details are available in that language, the
resource's snippet.localized object will contain the localized values.
However, if localized details are not available, the snippet.localized
object will contain resource details in the resource's default language.
Implementation
final String? hl;