Nothing
Code
dir_tree("foo")
Output
foo
\-- 1
Code
dir_tree("foo")
Output
foo
+-- 1
+-- 2
+-- 3
\-- 4
Code
dir_tree("foo")
Output
foo
+-- 4
+-- bar
| +-- 1
| \-- baz
| \-- 2
\-- qux
\-- 3
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