---
source: hydroflow/tests/surface_fold.rs
expression: "df.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_stream(items_recv)</code>"/]:::pullClass
2v1[\"(2v1) <code>fold::&lt;'tick&gt;(Vec::new, Vec::push)</code>"/]:::pullClass
3v1[\"<div style=text-align:center>(3v1)</div> <code>flat_map(|mut vec| {<br>    vec.sort();<br>    vec<br>})</code>"/]:::pullClass
4v1[/"(4v1) <code>for_each(|v| print!(&quot;{:?}, &quot;, v))</code>"\]:::pushClass
5v1["(5v1) <code>handoff</code>"]:::otherClass
3v1-->4v1
2v1-->3v1
1v1-->5v1
5v1--x2v1; linkStyle 3 stroke:red
subgraph sg_1v1 ["sg_1v1 stratum 0"]
    1v1
end
subgraph sg_2v1 ["sg_2v1 stratum 1"]
    2v1
    3v1
    4v1
end