Question about views

I am not sure I fully understand the concept of views and combining them. Here is my use case:

I am creating a `config` using this code and yaml file:
````
config = LazyConfig('qti-scoring-engine', "app")
````
Here is an example of the config in the yaml:
```
uvicorn:
host: 127.0.0.1
port: 8080
workers: 1
```

Then augmenting it with the arguments:
```
config.set_args(args, dots=True)
```

the arguments I am passing are
```
parser.add_argument('--uvicorn.host', help='a host', required=False)
parser.add_argument('--uvicorn.port', help='a port', type=int, required=False)
```

When I then look up the configuration using the below line it returns only the entries from the second view created by the `config.set_args`:

```
config['uvicorn'].get()
```

How could I get all the values returned by merging both views?

When I examine the config in the debugger it has two views, and `config.flatten()` returns the properly merged configuration.

Any help is very much appreciated.

Start with the LazyConfig, set_args, __getitem__, get, and flatten entry points mentioned in the issue, then trace how each view is resolved. Compare the lookup result with flatten() and identify the intended merged-view behavior; done means the documented lookup returns the expected combined values, with coverage for the uvicorn example.

Written by the indexing model from the issue text.