defaultdict(default_factory[, ...]) --> dict with default factory
tfdf.py_tree.node.defaultdict(
    *args, **kwargs
)
The default factory is called without arguments to produce a new value when a key is not present, in getitem only. A defaultdict compares equal to a dict with the same items. All remaining arguments are treated the same as if they were passed to the dict constructor, including keyword arguments.
| Attributes | |
|---|---|
| default_factory | Factory for default value called by missing(). | 
Methods
copy
copy()
D.copy() -> a shallow copy of D.
__or__
__or__(
    value, /
)
Return self|value.
__ror__
__ror__(
    value, /
)
Return value|self.