initializeFormattingFromFile static method
This should be called for at least one locale before any date formatting
methods are called. It sets up the lookup for date symbols using path.
The path parameter should end with a directory separator appropriate
for the platform.
en_US is always loaded by default.
Implementation
static Future<void> initializeFormattingFromFile(
String locale,
String path,
) async {
await loader.initializeFormattingFromFile(locale, path);
}