Update tflite-schema.js

source/tflite-schema.js

@@ -21,7 +21,8 @@ tflite.TensorType = {
     UINT16: 16,
     INT4: 17,
     BFLOAT16: 18,
-    INT2: 19
+    INT2: 19,
+    UINT4: 20
 };
 
 tflite.CustomQuantization = class CustomQuantization {