defaultdict(default_factory=None, /, [...]) --> 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.
||Factory for default value called by missing().|
D.copy() -> a shallow copy of D.
__or__( value, / )
__ror__( value, / )