# NumpyRingBuffer

## class NumpyRingBuffer(maxlen: int, dtype: Any)[source]

Bases: [`object`](https://docs.python.org/3/builtins/functions.html#object "(in Python v3.15)")

Methods

| [`extend`](https://dev.nominal.io/instro/ref/library/instro.lib.publishers.channel_buffer.NumpyRingBuffer.md#instro.lib.publishers.channel_buffer.NumpyRingBuffer.extend "instro.lib.publishers.channel_buffer.NumpyRingBuffer.extend") |  |
| --- | --- |
| [`get_latest`](https://dev.nominal.io/instro/ref/library/instro.lib.publishers.channel_buffer.NumpyRingBuffer.md#instro.lib.publishers.channel_buffer.NumpyRingBuffer.get_latest "instro.lib.publishers.channel_buffer.NumpyRingBuffer.get_latest") |  |

### extend(values) → None[source]

### get_latest( n: int, ) → ndarray[tuple[Any, ...], dtype[_ScalarT]][source]