class file for com.google.errorprone.annotations.RestrictedInheritance not found

Just updated Google Places SDK from 3.3.0 to 3.4.0 which bumped play-services-base from 18.0.1 to 18.3.0, resulting in the following problems:
```
compileDebugJavaWithJavac FAILED
Z:\caches\gradle\caches\transforms-3\cafb58f4ccde6f6fe4b7ef5eb9b091ac\transformed\play-services-base-18.3.0-api.jar(/com/google/android/gms/common/GoogleApiAvailability.class): warning: Cannot find annotation method 'explanation()' in type 'RestrictedInheritance': class file for com.google.errorprone.annotations.RestrictedInheritance not found
Z:\caches\gradle\caches\transforms-3\cafb58f4ccde6f6fe4b7ef5eb9b091ac\transformed\play-services-base-18.3.0-api.jar(/com/google/android/gms/common/GoogleApiAvailability.class): warning: Cannot find annotation method 'link()' in type 'RestrictedInheritance'
Z:\caches\gradle\caches\transforms-3\cafb58f4ccde6f6fe4b7ef5eb9b091ac\transformed\play-services-base-18.3.0-api.jar(/com/google/android/gms/common/GoogleApiAvailability.class): warning: Cannot find annotation method 'allowedOnPath()' in type 'RestrictedInheritance'
Z:\caches\gradle\caches\transforms-3\cafb58f4ccde6f6fe4b7ef5eb9b091ac\transformed\play-services-base-18.3.0-api.jar(/com/google/android/gms/common/GoogleApiAvailability.class): warning: Cannot find annotation method 'allowlistAnnotations()' in type 'RestrictedInheritance'
error: warnings found and -Werror specified
1 error
4 warnings
```

Can you please add the `RestrictedInheritance` annotation and checker to the error-prone artifacts? or hide the private annotation from the public API.