diff --git a/docs/x.md b/docs/x.md
new file mode 100644
index 00000000..587be6b4
--- /dev/null
+++ b/docs/x.md
@@ -0,0 +1 @@
+x
diff --git a/src/a.ts b/src/a.ts
new file mode 100644
index 00000000..587be6b4
--- /dev/null
+++ b/src/a.ts
@@ -0,0 +1 @@
+x