digraph Taskflow {
    rankdir="LR"
subgraph cluster_p0x7ffeeca03810 {
label="Taskflow";
p0x7fbc40c02830[label="A" ];
subgraph cluster_p0x7fbc40c02830 {
label="Subflow: A";
color=blue
p0x7fbc40d00120[label="A1" ];
p0x7fbc40d00120 -> p0x7fbc40d00240;
p0x7fbc40d00240[label="A2" ];
p0x7fbc40d00240 -> p0x7fbc40c02830;
subgraph cluster_p0x7fbc40d00240 {
label="Subflow: A2";
color=blue
p0x7fbc40d00360[label="A2_1" ];
p0x7fbc40d00360 -> p0x7fbc40d00470;
p0x7fbc40d00470[label="A2_2" ];
p0x7fbc40d00470 -> p0x7fbc40d00240;
}
}
}
}