---
title: "Count"
---
<!-- DO NOT EDIT! This file was auto-generated by crates/build/re_types_builder/src/codegen/docs/website.rs -->

⚠️ **This type is _unstable_ and may change significantly in a way that the data won't be backwards compatible.**
A generic count value.

Used for counting various entities like messages, schemas, channels, etc.

## Rerun datatype
[`UInt64`](../datatypes/uint64.md)


## Arrow datatype
```
UInt64
```

## API reference links
 * 🌊 [C++ API docs for `Count`](https://ref.rerun.io/docs/cpp/stable/structrerun_1_1components_1_1Count.html)
 * 🐍 [Python API docs for `Count`](https://ref.rerun.io/docs/python/stable/common/components#rerun.components.Count)
 * 🦀 [Rust API docs for `Count`](https://docs.rs/rerun/latest/rerun/components/struct.Count.html)


## Used by

* [`McapStatistics`](../archetypes/mcap_statistics.md)
