Overview: Yarn: Dictionary-Like

Detail	`Yarn.__contains__(value)`	Inclusion of value in index labels. Returns: bool
Detail	`Yarn.__iter__()`	Iterator of index labels, same as Series.keys. Returns: Iterator[Hashasble]
Detail	`Yarn.__reversed__()`	Returns a reverse iterator on the Yarn index. Returns: Index
Detail	`Yarn.get(key, default)`	Return the value found at the index key, else the default if the key is not foun…
Detail	`Yarn.items()`	Iterator of pairs of Yarn label and contained Frame.
Detail	`Yarn.keys()`	Iterator of index labels. Returns: Iterator[Hashable]
Detail	`Yarn.values`	A 1D object array of all Frame contained in all contained Bus.