Class _GetItemDuck

IPython/core/guarded_eval.py:1334–1345

A dict subclass that always returns the factory instance and claims to have any item.

class _GetItemDuck(dict):
    """A dict subclass that always returns the factory instance and claims to have any item."""

    def __init__(self, factory, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self._factory = factory

    def __getitem__(self, key):
        return self._factory()

    def __contains__(self, key):
        return True


def _resolve_annotation(