neato script

digraph G {
splines=curved;
graph [dpi="72"];
bgcolor="lightgray";
n_a [label="", color="black", rectangular="true", shape="box", width="0.001", height="0.001", pos="0,500!"];
n_b [label="", color="black", rectangular="true", shape="box", width="0.001", height="0.001", pos="2840,-963!"];
n0 [label="{{|}|{|}}", color="black", fixedsize="true", rectangular="true", shape="record", width="6.83333", height="0.861111", pos="268,-318!"];
n1 [label="{{|}|{|}|{|}}", color="black", fixedsize="true", rectangular="true", shape="record", width="9.27778", height="1.22222", pos="1057,-385!"];
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n0:out1 -> n1:in2 [arrowhead="vee"];
n1:out1 -> n2:in2 [arrowhead="vee"];
n3:out1 -> n4:in2 [arrowhead="vee"];
n4:out1 -> n2:in3 [arrowhead="vee"];
n5:out1 -> n4:in1 [arrowhead="vee"];
n6:out1 -> n7:in2 [arrowhead="vee"];
n7:out1 -> n8:in1 [arrowhead="vee"];
n8:out1 -> n1:in1 [arrowhead="vee"];
n9:out1 -> n7:in1 [arrowhead="vee"];
n2:out1 -> n10:in1 [arrowhead="vee"];
n10:out1 -> n11:in1 [arrowhead="vee"];
n12:out1 -> n11:in6 [arrowhead="vee"];
n13:out1 -> n14:in2 [arrowhead="vee"];
n15:out1 -> n11:in4 [arrowhead="vee"];
n16:out1 -> n11:in5 [arrowhead="vee"];
n17:out1 -> n11:in2 [arrowhead="vee"];
n18:out1 -> n11:in3 [arrowhead="vee"];
n11:out2 -> n19:in1 [arrowhead="vee"];
n11:out3 -> n20:in1 [arrowhead="vee"];
}