imgaug/external/poly_point_isect_py2py3.py
def prev_key(self, key, default=_sentinel):
        """Get predecessor to key, raises KeyError if key is min key
        or key does not exist.
        """
        item = self.prev_item(key, default)
        return default if item is default else item[0]
def prev_key(self, key, default=_sentinel):
        """Get predecessor to key, raises KeyError if key is min key
        or key does not exist.
        """
        item = self.prev_item(key, default)
        return default if item is default else item[0]
Get predecessor to key, raises KeyError if key is min key
        or key does not exist.