def get_apis(self):
        """Returns set of api names referenced in this Registry

        :return: set of api name strings
        """
        out = set(x.api for x in self.types.values() if x.api)
        for ft in self.features.values():
            out.update(ft.get_apis())
        for ext in self.extensions.values():
            out.update(ext.get_apis())
        return out
def get_apis ( self ) : out = set ( x . api for x in self . types . values ( ) if x . api ) for ft in self . features . values ( ) : out . update ( ft . get_apis ( ) ) for ext in self . extensions . values ( ) : out . update ( ext . get_apis ( ) ) return out
Returns set of api names referenced in this Registry

        :return: set of api name strings