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-rw-r--r--src/engine/machina/Machine.hpp1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/engine/machina/Machine.hpp b/src/engine/machina/Machine.hpp
index 84e819d..e82f992 100644
--- a/src/engine/machina/Machine.hpp
+++ b/src/engine/machina/Machine.hpp
@@ -34,7 +34,6 @@
namespace machina {
class Context;
-class Controller;
class LearnRequest;
/** A (Finite State) Machine.