def inheriting_field_data(kvs):
 return InheritingFieldData(inheritable_names=InheritanceMixin.fields.keys(), kvs=kvs)

def inheriting_field_data ( kvs ) : return InheritingFieldData ( inheritable_names = InheritanceMixin . fields . keys ( ) , kvs = kvs )
create an inheritancefielddata that inherits the names in inheritancemixin .