# tensorplay.functional.is_inference

Source: https://www.tensorplay.cn/docs/generated/tensorplay.functional.is_inference.html

```python
tensorplay.functional.is_inference(input)
```

Returns True if input is an inference tensor.

A non-view tensor is an inference tensor if and only if it was
allocated during inference mode. A view tensor is an inference
tensor if and only if the tensor it is a view of is an inference tensor.

For details on inference mode please see
[Inference Mode](https://pytensorplay.org/cppdocs/notes/inference_mode.html).

Parameters:

input ([Tensor](/docs/generated/tensorplay.Tensor.html#tensorplay.Tensor)) – the input tensor.