diff --git a/src/IronpenGPU.jl b/src/IronpenGPU.jl
index 10418cc..ab8242d 100644
--- a/src/IronpenGPU.jl
+++ b/src/IronpenGPU.jl
@@ -11,7 +11,7 @@ include("type.jl")
 using .type    # bring model into this module namespace (this module is a parent module)
 
 include("snnUtils.jl")
-using .snn_utils
+using .snnUtils
 
 include("interface.jl")
 using .interface
@@ -39,4 +39,42 @@ using .interface
 """
 
 
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 end # module IronpenGPU
diff --git a/src/interface.jl b/src/interface.jl
index 53fa829..705220d 100644
--- a/src/interface.jl
+++ b/src/interface.jl
@@ -3,7 +3,7 @@ module interface
 
 # export 
 
-using Flux, CUDA
+# using Flux, CUDA
 
 #------------------------------------------------------------------------------------------------100
 
diff --git a/src/type.jl b/src/type.jl
index 2bb928e..eeb38ca 100644
--- a/src/type.jl
+++ b/src/type.jl
@@ -1,8 +1,12 @@
 module type
 
-# export
+export 
+    # struct
+    kfn
 
-using CUDA, Random
+    # function
+
+using Random
 
 #------------------------------------------------------------------------------------------------100
 
@@ -25,40 +29,13 @@ Base.@kwdef mutable struct kfn <: knowledgeFn
 end
 
 function kfn(kfnParams::Dict)
-    kfn = kfn()
-    kfn.kfnParams = kfnParams
-    kfn.knowledgeFnName = kfn.kfnParams[:knowledgeFnName]
+    kfn_1 = kfn()
+    kfn_1.params = kfnParams
 
-    if kfn.kfnParams[:computeNeuronNumber] < kfn.kfnParams[:totalInputPort]
+    if kfn_1.params[:computeNeuronNumber] < kfn_1.params[:totalInputPort]
         throw(error("number of compute neuron must be greater than input neuron"))
     end
 
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     error("debug end")
 end