This very basic example takes a varchar input, and returns the lowercase version.. varchar is converted to a python string on the way in and way out.; input_schema contains a PyArrow schema ...

sometimes input is read via vscode input as expected, allowing multiple lines of input which are then displayed in the cell output. however, after stopping the cell and running it again, the notebook ...

In mathematics, a "well-defined" function is one where there is only 1 output for a given input (as a side note, you can have only single input functions, and still semantically get multiple ...