On each line of requirements.txt you can provide the package name. Optionally you may provide version pinning as well.
In order to install an exact version, you can use the `==` pin, to install a version at least 2.0.3 you can use `>=`.

Here is an example of a requirements.txt that installs a fake package from version 2.0.3 or above:

```text
fake-package >= 2.0.3
```
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence