Does jmespath support maps?

Hello all,
I have this code snippet:

```
fmt.Printf("Hardcoded path value: %v\n", data.Deployments["watchdog"].LivenessProbe.Port)
result, err = jmespath.Search(`"deployments"`, *data)
fmt.Printf("Result 1: %#v err: %v\n", result, err)
result, err = jmespath.Search(`"deployments"."watchdog"`, *data)
fmt.Printf("Result 2: %#v err: %v\n", result, err)
```

The results are:

```
Hardcoded path value: 40385
Result 1: map[string]*onechart.Deployment{"watchdog":(*onechart.Deployment)(0xc0004e5040)} err:
Result 2: err:
```

It seems like jmespath is fully able to traverse a struct and get a Field in there, but fails to grab it when this is a map key.

Is this expected? Are there any alternatives?
Regards.