paper-radio-group grouping information not available for screen readers

[uxdesignz]

Actual Result:
The radio button form fields are grouped using role="radiogroup" but no group label is defined. The grouping information will not be available to screen reader users. we can provide group label as per the component but label is visible ,there is no mixin available to hide and aria-labelledby will not set for grouplabel.

Expected Results:
Use ARIA role="radiogroup" with the aria-labelledby attribute to define the group label for the form fields, but screen-reader should read the focused radio-button label value instead of the grouped label value.

[uxdesignz]

Any update on this?