I've been reading through the Django source code the last few days. When I
was reading the BaseManager source code I saw a method like this:
```python
@classmethod
def _get_queryset_methods(cls, queryset_class):
def create_method(name, method):
@wraps(method)
def manager_method(self, *args, **kwargs):
return getattr(self.get_queryset(), name)(*args, **kwargs)
return manager_method
new_methods = {}
for name, method in inspect.getmembers(
queryset_class, predicate=inspect.isfunction
):
if hasattr(cls, name):
continue
queryset_only = getattr(method, "queryset_only", None)
if queryset_only or (queryset_only is None and
name.startswith("_")):
continue
new_methods[name] = create_method(name, method)
return new_methods
```
My question is why we use `getattr(self.get_queryset(), name)` insted of
just use `method`.
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