diff --git a/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift b/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift
index f00fd753..fe472030 100644
--- a/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift
+++ b/Source/Modules/LangModelRelated/SubLMs/lmAssociates.swift
@@ -44,7 +44,7 @@ extension vChewing {
       !keyValueMap.isEmpty
     }
 
-    @discardableResult mutating public func open(_ path: String) -> Bool {
+    @discardableResult public mutating func open(_ path: String) -> Bool {
       if isLoaded() {
         return false
       }
@@ -91,12 +91,12 @@ extension vChewing {
           keyValueMap[currentKV.key, default: []].append(currentKV)
         }
       }
-      IME.prtDebugIntel("\(self.keyValueMap.count) entries of data loaded from: \(path)")
+      IME.prtDebugIntel("\(keyValueMap.count) entries of data loaded from: \(path)")
       theData = ""
       return true
     }
 
-    mutating public func close() {
+    public mutating func close() {
       if isLoaded() {
         keyValueMap.removeAll()
       }
diff --git a/Source/Modules/LangModelRelated/SubLMs/lmCore.swift b/Source/Modules/LangModelRelated/SubLMs/lmCore.swift
index 99688a5d..15ff4b40 100644
--- a/Source/Modules/LangModelRelated/SubLMs/lmCore.swift
+++ b/Source/Modules/LangModelRelated/SubLMs/lmCore.swift
@@ -55,7 +55,7 @@ extension vChewing {
       !keyValueScoreMap.isEmpty
     }
 
-    @discardableResult mutating public func open(_ path: String) -> Bool {
+    @discardableResult public mutating func open(_ path: String) -> Bool {
       if isLoaded() {
         return false
       }
@@ -92,7 +92,7 @@ extension vChewing {
             }
             continue
           }
-          var currentUnigram = Megrez.Unigram(keyValue: Megrez.KeyValuePair(), score: self.defaultScore)
+          var currentUnigram = Megrez.Unigram(keyValue: Megrez.KeyValuePair(), score: defaultScore)
           var columnOne = ""
           var columnTwo = ""
           for (unitID, unitContent) in lineContent.components(separatedBy: " ").enumerated() {
@@ -102,7 +102,7 @@ extension vChewing {
               case 1:
                 columnTwo = unitContent
               case 2:
-                if !self.shouldForceDefaultScore {
+                if !shouldForceDefaultScore {
                   if let unitContentConverted = Double(unitContent) {
                     currentUnigram.score = unitContentConverted
                   } else {
@@ -117,20 +117,20 @@ extension vChewing {
             currentUnigram.score -= (Double(lineID) * 0.000001)
           }
           let kvPair =
-            self.shouldReverse
+            shouldReverse
             ? Megrez.KeyValuePair(key: columnTwo, value: columnOne)
             : Megrez.KeyValuePair(key: columnOne, value: columnTwo)
           currentUnigram.keyValue = kvPair
-          let key = self.shouldReverse ? columnTwo : columnOne
-          self.keyValueScoreMap[key, default: []].append(currentUnigram)
+          let key = shouldReverse ? columnTwo : columnOne
+          keyValueScoreMap[key, default: []].append(currentUnigram)
         }
       }
-      IME.prtDebugIntel("\(self.keyValueScoreMap.count) entries of data loaded from: \(path)")
+      IME.prtDebugIntel("\(keyValueScoreMap.count) entries of data loaded from: \(path)")
       theData = ""
       return true
     }
 
-    mutating public func close() {
+    public mutating func close() {
       if isLoaded() {
         keyValueScoreMap.removeAll()
       }
diff --git a/Source/Modules/LangModelRelated/SubLMs/lmLite.swift b/Source/Modules/LangModelRelated/SubLMs/lmLite.swift
index f6be3a06..cd9267a6 100644
--- a/Source/Modules/LangModelRelated/SubLMs/lmLite.swift
+++ b/Source/Modules/LangModelRelated/SubLMs/lmLite.swift
@@ -46,7 +46,7 @@ extension vChewing {
       !keyValueMap.isEmpty
     }
 
-    @discardableResult mutating public func open(_ path: String) -> Bool {
+    @discardableResult public mutating func open(_ path: String) -> Bool {
       if isLoaded() {
         return false
       }
@@ -95,7 +95,7 @@ extension vChewing {
           keyValueMap[currentKV.key, default: []].append(currentKV)
         }
       }
-      IME.prtDebugIntel("\(self.keyValueMap.count) entries of data loaded from: \(path)")
+      IME.prtDebugIntel("\(keyValueMap.count) entries of data loaded from: \(path)")
       theData = ""
       if path.contains("vChewing/") {
         dump()
@@ -103,7 +103,7 @@ extension vChewing {
       return true
     }
 
-    mutating public func close() {
+    public mutating func close() {
       if isLoaded() {
         keyValueMap.removeAll()
       }
diff --git a/Source/Modules/LangModelRelated/SubLMs/lmReplacements.swift b/Source/Modules/LangModelRelated/SubLMs/lmReplacements.swift
index 387c0e65..98939d87 100644
--- a/Source/Modules/LangModelRelated/SubLMs/lmReplacements.swift
+++ b/Source/Modules/LangModelRelated/SubLMs/lmReplacements.swift
@@ -44,7 +44,7 @@ extension vChewing {
       !keyValueMap.isEmpty
     }
 
-    @discardableResult mutating public func open(_ path: String) -> Bool {
+    @discardableResult public mutating func open(_ path: String) -> Bool {
       if isLoaded() {
         return false
       }
@@ -91,12 +91,12 @@ extension vChewing {
           keyValueMap[currentKV.key] = currentKV.value
         }
       }
-      IME.prtDebugIntel("\(self.keyValueMap.count) entries of data loaded from: \(path)")
+      IME.prtDebugIntel("\(keyValueMap.count) entries of data loaded from: \(path)")
       theData = ""
       return true
     }
 
-    mutating public func close() {
+    public mutating func close() {
       if isLoaded() {
         keyValueMap.removeAll()
       }