I broke up with neovim....vim is my best friend now

dot_vim/plugged/vimtex/test/test-syntax/test-asymptote.tex

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+\documentclass{article}
+\usepackage[inline]{asymptote}
+
+\begin{document}
+
+Here is a venn diagram produced with Asymptote, drawn to width 4cm:
+
+\begin{asy}
+  size(4cm,0);
+  pen colour1=red;
+  pen colour2=green;
+
+  pair z0=(0,0);
+  pair z1=(-1,0);
+  pair z2=(1,0);
+  real r=1.5;
+  path c1=circle(z1,r);
+  path c2=circle(z2,r);
+  fill(c1,colour1);
+  fill(c2,colour2);
+
+  picture intersection=new picture;
+  fill(intersection,c1,colour1+colour2);
+  clip(intersection,c2);
+
+  add(intersection);
+
+  draw(c1);
+  draw(c2);
+
+  // draw("$\A$",box,z1);              // Requires [inline] package option.
+  // draw(Label("$\B$","$B$"),box,z2); // Requires [inline] package option.
+  draw("$A$",box,z1);
+  draw("$\V{B}$",box,z2);
+
+  pair z=(0,-2);
+  real m=3;
+  margin BigMargin=Margin(0,m*dot(unit(z1-z),unit(z0-z)));
+
+  draw(Label("$A\cap B$",0),conj(z)--z0,Arrow,BigMargin);
+  draw(Label("$A\cup B$",0),z--z0,Arrow,BigMargin);
+  draw(z--z1,Arrow,Margin(0,m));
+  draw(z--z2,Arrow,Margin(0,m));
+
+  shipout(bbox(0.25cm));
+\end{asy}
+
+\begin{asydef}
+  // Global Asymptote definitions can be put here.
+  import three;
+  usepackage("bm");
+  texpreamble("\def\V#1{\bm{#1}}");
+  // One can globally override the default toolbar settings here:
+  // settings.toolbar=true;
+\end{asydef}
+
+\end{document}