---
source: hydroflow/tests/surface_persist.rs
expression: "hf.meta_graph().unwrap().to_mermaid(&Default::default())"
---
%%{init:{'theme':'base','themeVariables':{'clusterBkg':'#ddd','clusterBorder':'#888'}}}%%
flowchart TD
classDef pullClass fill:#8af,stroke:#000,text-align:left,white-space:pre
classDef pushClass fill:#ff8,stroke:#000,text-align:left,white-space:pre
classDef otherClass fill:#fdc,stroke:#000,text-align:left,white-space:pre
linkStyle default stroke:#aaa
1v1[\"(1v1) <code>source_iter([1])</code>"/]:::pullClass
2v1[\"(2v1) <code>persist::&lt;'static&gt;()</code>"/]:::pullClass
3v1[\"(3v1) <code>persist::&lt;'static&gt;()</code>"/]:::pullClass
4v1[\"(4v1) <code>fold(|| 0, |a: &amp;mut _, b| *a += b)</code>"/]:::pullClass
5v1[/"(5v1) <code>for_each(|x| result_send.send(x).unwrap())</code>"\]:::pushClass
6v1["(6v1) <code>handoff</code>"]:::otherClass
4v1-->5v1
3v1-->6v1
2v1-->3v1
1v1-->2v1
6v1--x4v1; linkStyle 4 stroke:red
subgraph sg_1v1 ["sg_1v1 stratum 0"]
    1v1
    2v1
    3v1
end
subgraph sg_2v1 ["sg_2v1 stratum 1"]
    4v1
    5v1
end