How can I import custom Python modules stored in workspace files alongside my Databricks notebooks?
To import custom Python modules stored in workspace files alongside your Databricks notebooks, you can use relative paths to add the directory containing the module to sys.path. Here's an example:

```python
import sys
import os

sys.path.append(os.path.abspath('..'))
```

In this example, the '..' argument in os.path.abspath('..') refers to the parent directory of the current notebook. You can replace it with the relative path to the directory containing your custom Python module.

After adding the directory to sys.path, you can import the module using the standard Python import statement, like so:

```python
from sample import power
power.powerOfTwo(3)
```

In this example, 'sample' is the name of the custom Python module, and 'power' is a function defined in that module.