proximal_neighbor is not returning the nearest points and shows ValueError

[Sadabrata]

KDTree.proximal_neighbor(tree2, (3,4,11), d=9)
the above line raises the following value error
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

I tried changing d and it seems as long as d < (distance between the point and a node) the code runs perfectly, but when d > (distance between the point and a node) that is when the required point has actual nearest neighbours, the given error is encountered.

[Amir-m-a]

replace with if dist <= d and not np.array_equal(point, self.value)