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class BaseRoute; end; class MyRoute < BaseRoute; end
ary1 = [[2,3,4], [1,2,3]]
ary2 = [1,2,3]
pp! ary1 - ary2 # return ary1
ary2 = [[1,2,3]]
yxhuvud, it would also hugely help to allow these to be any IO, not only FileDescriptor. almost all of the complexity is also due to that.