# InferDataTypeContext

* **[GetInputDataType](https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/cannkit-getinputdatatype)**   
* **[GetOptionalInputDataType](https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/cannkit-getoptionalinputdatatype)**   
* **[GetRequiredInputDataType](https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/cannkit-getrequiredinputdatatype)**   
* **[GetOutputDataType](https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/cannkit-getoutputdatatype)**   
* **[SetOutputDataType](https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/cannkit-setoutputdatatype)**