pocketpy/docs/modules/collections.md
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---
icon: package
label: collections
---
### `collections.Counter(iterable)`
Return a `dict` containing the counts of each element in `iterable`.
### `collections.deque`
A double-ended queue.
### `collections.defaultdict`
A `dict` wrapper that calls a factory function to supply missing values.
It is not a subclass of `dict`.