Assertion: interface's member | /r/HasProperty | implemented in class
Facets:
value: explicitly (not implicitly)
type: MANNER
Source sentences:
text: virtual function members in an interface may only be overridden explicitly (not implicitly) in derived interfaces, and members that are not public may only be implemented in a class or struct explicitly (not implicitly).
text: Its members are implemented by any class or struct that implements the interface.