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        #bucket_totals = nodes.reduce(Hash.new() { |h,k| h[k] = 0 }) do |hsh, (node, node_hsh)|
        #  hsh[node_hsh['bucket']] += 1
        #  hsh
        #end
        bucket_totals = Hash.new(0)
        nodes.values.each do |node|
           bucket_totals[node['bucket']] += 1
        end