data.createGrid
Create an empty 2D array (grid) in the same format returned by loadCsvFile and runSelectQuery etc.
none
cells 2D array (in format [yRow][xCol])
local cells = data.createGrid()
data.setCell(cells, 1, 5, "Hello")
data.setCell(cells, 2, 5, "World")
data.printGrid(cells)