[Python APIView] Constructor parameter 'type' is not rendered with its Literal type annotation

**Bad code snippet:**
```python
def __init__(
```
The APIView parser fails to render the 'type' parameter with its declared Literal type annotation in the SASCredentials constructor. This misrepresents the intended type safety and usage.

**Expected behavior:**
The 'type' parameter should be rendered as:
```python
def __init__(self, *, type: Literal[CredentialType.SAS]) -> None
```
This ensures the correct type annotation is visible and accurately reflects the code's intent.

Start by locating the Python APIView parser handling the SASCredentials constructor and its `type` parameter. Compare the rendered signature with the declared `Literal[CredentialType.SAS]` annotation; done means the output shows `def __init__(self, *, type: Literal[CredentialType.SAS]) -> None`.

Written by the indexing model from the issue text.