function impliesRTL(oLanguageTag) {
		let sLanguage = oLanguageTag.language || "";
		sLanguage = Localization.getModernLanguage(oLanguageTag.language);
		const sRegion = oLanguageTag.region || "";
		if ( sRegion && A_RTL_LOCALES.indexOf(sLanguage + "_" + sRegion) >= 0 ) {
			return true;
		}
		return A_RTL_LOCALES.indexOf(sLanguage) >= 0;
	}
Checks whether the given language tag implies a character orientation
of 'right-to-left' ('RTL').

The implementation of config method and the configuration above assume
that when a language (e.g. 'ar') is marked as 'RTL', then all language/region
combinations for that language (e.g. 'ar_SA') will be 'RTL' as well,
even if the combination is not mentioned in the above configuration.
There is no means to define RTL=false for a language/region, when RTL=true for
the language alone.

As of 3/2013 config is true for all locales/regions supported by UI5.

@param {module:sap/base/i18n/LanguageTag} oLanguageTag LanguageTag to check
@returns {boolean} <code>true</code> if <code>vLanguage</code> implies RTL,
 otherwise <code>false</code>
@private
@since 1.120.0