Based on the given feature "nr_08", which represents whether the patient has Ventricular paroxysmal tachycardia in the anamnesis, we can analyze its relationship with the presence of chronic heart failure complications in a myocardial infarction (MI) patient.

To perform the analysis, we need access to data that includes information about the presence or absence of chronic heart failure complications (target variable) and the values of the "nr_08" feature for each patient.

After analyzing the data, we can create a dictionary with the following format:

```json
{
	"no": ["no"], 
	"yes": ["yes"]
}
```
In this case, the feature "nr_08" only has two possible values, "no" and "yes". Both values are explicitly mentioned in the feature description as categorical values. Therefore, we can list them as the possible values for each target class: "no" for patients without chronic heart failure and "yes" for patients with chronic heart failure.

Since the given feature does not provide any additional values beyond "no" and "yes", we do not include any other values in the dictionary.