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-rw-r--r--hsm-core/Hsm/Core/Fsm.hs2
1 files changed, 2 insertions, 0 deletions
diff --git a/hsm-core/Hsm/Core/Fsm.hs b/hsm-core/Hsm/Core/Fsm.hs
index 43fa497..6f9910e 100644
--- a/hsm-core/Hsm/Core/Fsm.hs
+++ b/hsm-core/Hsm/Core/Fsm.hs
@@ -26,6 +26,8 @@ data FsmOutput i o env sta =
data FsmResult i o env sta =
FsmResult o sta (FsmState i o env sta)
+-- Finite state machines allow processing of stream elements using pure
+-- functions. One or more FSMs can be included within a `Streamly` pipeline.
fsm ::
forall i o env sta es.
( Log :> es