## utils.get_credentials_from_env()


Retrieve username and password credentials from environment variables.


Usage

``` python
utils.get_credentials_from_env(
    username_key,
    password_key,
)
```


## Parameters


`username_key: str`  
The environment variable name for the username

`password_key: str`  
The environment variable name for the password


## Returns


`tuple[str, str]`  
A tuple of (username, password)


## Raises


`KeyError`  
If either credential is missing or empty.