get effectiveDir() {
      (0, _RTLAwareRegistry.markAsRtlAware)(this.constructor); // if a UI5 Element calls this method, it's considered to be rtl-aware
      return (0, _getEffectiveDir.default)(this);
    }
Determines whether the component should be rendered in RTL mode or not.
Returns: "rtl", "ltr" or undefined

@public
@returns {String|undefined}