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discard """
output: '''false'''
"""
# bug #5402
import lists
type
Container[T] = ref object
obj: T
ListOfContainers[T] = ref object
list: DoublyLinkedList[Container[T]]
proc contains[T](this: ListOfContainers[T], obj: T): bool =
for item in this.list.items():
if item.obj == obj: return true
return false
proc newListOfContainers[T](): ListOfContainers[T] =
new(result)
result.list = initDoublyLinkedList[Container[T]]()
let q = newListOfContainers[int64]()
echo q.contains(123)
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