# CostEstimator

**Package:** `flyte.extras`

Protocol for records that can estimate their own processing cost.

Implement this on your record type and the batcher will call it
automatically when no explicit `estimated_cost` is passed to
`DynamicBatcher.submit`.

```python
protocol CostEstimator()
```
## Methods

| Method | Description |
|-|-|
| [`estimate_cost()`](#estimate_cost) |  |

### estimate_cost()

```python
def estimate_cost()
```

---
**Source**: https://github.com/unionai/unionai-docs/blob/main/content/api-reference/flyte-sdk/packages/flyte.extras/costestimator.md
**HTML**: https://www.union.ai/docs/v2/union/api-reference/flyte-sdk/packages/flyte.extras/costestimator/