Ak.zip -

: If you pass a list or tuple of arrays instead of a dictionary, it creates an array of unnamed tuples.

: It is specifically designed to handle "ragged" or jagged data, where nested lists may have different lengths across different entries. Key Parameters According to the Awkward Array documentation : ak.zip

The primary purpose of ak.zip is to take several arrays and "zip" them together so that each element of the resulting array is a record (like a row in a table) containing values from each input array. : If you pass a list or tuple