Is it possible to include `chalice` library in lambda package?

I'd like to use chalice library inside one of my API endpoints to return swagger schema.
But `chalice` library is excluded by default.
Here is an example of my API endpoint:
```python
@app.route("/api/v1/swagger/docs", methods=["GET"], cors=cors_config)
def swagger():
from chalice.deploy.swagger import TemplatedSwaggerGenerator

schema = TemplatedSwaggerGenerator().generate_swagger(app)
return json.dumps(schema)
```

Also, I'd like to mention that `chalice` is awesome! I love it!

Start from the deployment packaging path and the referenced chalice.deploy.swagger.TemplatedSwaggerGenerator import, then check how the Lambda package excludes Chalice. Done means an API endpoint can import that library and generate the Swagger schema at runtime without breaking the normal deployment flow.

Written by the indexing model from the issue text.