Complete the function so that it takes an array of keys and a default value and returns a hash (Ruby) / dictionary (Python) with all keys set to the default value. 
## Example
```python
["draft", "completed"], 0   # should return {"draft": 0, "completed: 0}
```
def populate_dict(keys, default):
    return dict(zip(keys, [default] * len(keys)))
def populate_dict(keys, default):
    return dict(zip(keys, [default] * len(keys)))