Add keepclassmembers

Author: lm2343635

pluto-kotlin-client-sdk/build.gradle

@@ -5,7 +5,7 @@ apply plugin: 'maven-publish'
 
 buildscript {
     ext.versionCode = 14
-    ext.versionName = '0.6.4'
+    ext.versionName = '0.6.5'
 }
 
 android {

pluto-kotlin-client-sdk/proguard-rules.pro

@@ -19,3 +19,5 @@
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
+
+-keepclassmembers enum * { *; }