Drop `__contains__` from `Datasets`
By default, the `Mapping` interface provides a method for
`__contains__`,  which `MutableMapping` inherits. So there is no need
for this method to be included explicitly on `Datasets`.
@@ -65,9 +65,6 @@ class Datasets(MutableMapping):
def __delitem__(self, key):
self.__client.unpublish_dataset(key)
- def __contains__(self, key):
- return key in self.__client.list_datasets()
-
def __iter__(self):
for key in self.__client.list_datasets():
yield key
