Tastypie: define authentication for all resources

Question

What is the best approach to define authentication/authorization for all tastypie resources? I have many resources and don't want to copy the authentication line every time. Right now, I defined a function

def create_auth():
    return MultiAuthentication(ApiKeyAuthentication(), BasicAuthentication())

and am calling it in each resource' meta class:

class SomeResource(ModelResource):
    class Meta:
        authentication = create_auth()

Is there a better solution for this? Is a 'metametaclass' solution possible/better? E.g.

class AuthMeta:
    authentication = MultiAuthentication(ApiKeyAuthentication(), BasicAuthentication())

class SomeResource(ModelResource):
    class Meta(AuthMeta):
        # further settings

class SomeOtherResourceNonORM(Resource):
    class Meta(AuthMeta):
        # further settings

Answer 1

You should do the metametaclass as recomended for both tastypie and django.

classs YourBaseResource(ModelResource):
    class Meta:
        authentication = MultiAuthentication(ApiKeyAuthentication(), BasicAuthentication())

class SomeResource(YourBaseResource):
    class Meta(YourBaseResource.Meta):
        # further settings

class SomeOtherResourceNonORM(YourBaseResource):
    class Meta(YourBaseResource.Meta):
        # further settings

update: using the correct base resource