Fixes a couple of errors:
#3315236 - typed properties not compatible with PHP 7.3 (because module claims support for 8.7.7+)
#3359947 - Use Interface class for improved compatibility
This module never had a release for some reason. The -dev version has been used for quite sometime, and there are no reported issues with the 7.x branch at present.
The following changes were made over the past week: