Workflows
Filtering
var childNodes: Array[Node] = get_children()
# 👇🏼 notice how we are NOT assigning a type to childCells.
# When I add a type here, I get a runtime crash.
# I have not figured out how to get GDScripts's type system to realize
# the underlying type.
var childCells = childNodes.filter(func(node):
# filter out all the objects that are not of type GDGridBoardCell
return node is GDGridBoardCell
)