_recorder - matching http headers as well as URL

For my project, I need to mock responses from an API where some of the parameters are included in a HTTP header, so for example I would make a request to `http://api.com/projects` with a http header set to `user-id: joebloggs`

Currently I am recording the responses by doing:

```python
@_recorder.record(filepath="out.yaml")
def test_something():
...
```

and then I'm loading the yaml file like this:

```python
@responses.activate
def test_something():
responses.add_from_file("out.yaml")
...
```

Is it possible to set up the registry to match on this HTTP header, and also save this header in the .yaml files that it generates?