1 files changed, 4 insertions, 0 deletions
diff --git a/drawing/op.ha b/drawing/op.ha
new file mode 100644
index 0000000..ef39161
--- /dev/null
+++ b/drawing/op.ha
@@ -0,0 +1,4 @@
+export type op_circle = pos;
+export type op_other = void;
+
+export type op = (op_circle| op_other);