Based on prior knowledge, AST_BLOOD (Serum AsAT content) is a blood test that measures the level of the enzyme aspartate aminotransferase (AST) in the blood. This enzyme is found in various tissues throughout the body, including the liver, heart, and muscles.

To analyze the relationship between AST_BLOOD and the presence of chronic heart failure as a complication of myocardial infarction (MI), we can consider the typical ranges of AST_BLOOD values for each target class.

Typically, higher AST_BLOOD levels may indicate liver damage or injury, while normal or slightly elevated levels are observed in healthy individuals. In the context of chronic heart failure as a complication of MI, the levels of AST_BLOOD may provide insights into the severity of heart damage and the extent of secondary organ damage, particularly the liver.

Based on this understanding, we can generate a dictionary with possible AST_BLOOD values for each target class.

```json
{
	"no": [20.5, 19.8, 21.3, 18.9, 22.1],
	"yes": [37.2, 40.1, 38.5, 39.8, 41.2]
}
```

In this example, we provide five typical AST_BLOOD values for each target class. The values presented here are meant to be illustrative and should be replaced with actual data or further analysis based on the specific dataset or domain knowledge.