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

dot_vim/plugged/vimtex/test/test-include/test.tex

@@ -0,0 +1,17 @@
+\documentclass{article}
+\usepackage[utf8]{inputenc}
+\usepackage{graphicx}
+\usepackage{natbib}
+
+\begin{document}
+
+Some silly simple file~\cite{test}.
+
+    \include{sub/file1.tex}
+\input{sub/file2.tex}
+\input{sub/file3.tex}\par
+
+\bibliographystyle{plainnat}
+\bibliography{references}
+
+\end{document}