# tensorplay.testing.get_tolerances

Source: https://www.tensorplay.cn/docs/generated/tensorplay.testing.get_tolerances.html

```python
tensorplay.testing.get_tolerances(*inputs: Tensor | dtype, rtol: float | None, atol: float | None, id: tuple[Any, ...] = ()) → tuple[float, float]
```

Gets absolute and relative tolerances to be used for numeric comparisons.

If both rtol and atol are specified, this is a no-op. If neither is
specified, [default_tolerances()](/docs/generated/tensorplay.testing.default_tolerances.html#tensorplay.testing.default_tolerances) is used. Specifying only one raises a
[ValueError](https://docs.python.org/3/builtins/exceptions.html#ValueError), since a single tolerance might lead to surprising
results.