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BitLogger/docs/api/history-sink-count.md
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---
name: history-sink-count
group: api
category: sink
update-time: 20260811
description: Read the number of records currently retained by a HistorySink.
key-word:
- sink
- history
- count
---
## History-sink-count
```moonbit
pub fn HistorySink::count(self : HistorySink) -> Int
```
Returns the current retained-record count, which never exceeds `capacity()`.