diff --git a/include/triton/common/triton_json.h b/include/triton/common/triton_json.h
index d57ff6e..cded06e 100644
--- a/include/triton/common/triton_json.h
+++ b/include/triton/common/triton_json.h
@@ -248,6 +248,15 @@ class TritonJson {
       return TRITONJSON_STATUSSUCCESS;
     }
 
+    // Set/overwrite a boolean in a value. This changes the
+    // type of the value to boolean.
+    TRITONJSON_STATUSTYPE SetBool(const bool value)
+    {
+      rapidjson::Value& v = AsMutableValue();
+      v.SetBool(value);
+      return TRITONJSON_STATUSSUCCESS;
+    }
+
     // Set/overwrite a signed integer in a value. This changes the
     // type of the value to signed int.
     TRITONJSON_STATUSTYPE SetInt(const int64_t value)
diff --git a/protobuf/model_config.proto b/protobuf/model_config.proto
index 06f013d..c27421e 100644
--- a/protobuf/model_config.proto
+++ b/protobuf/model_config.proto
@@ -409,6 +409,15 @@ message ModelInput
   //@@     Default value is false.
   //@@
   bool optional = 8;
+
+  //@@  .. cpp:var:: bool is_non_linear_format_io
+  //@@
+  //@@     Indicates whether the input tensor uses a non-linear IO format. This
+  //@@     field is currently supported only for TensorRT models. An error will
+  //@@     be generated if this specification does not comply with the
+  //@@     underlying model.
+  //@@
+  bool is_non_linear_format_io = 9;
 }
 
 //@@
@@ -461,6 +470,15 @@ message ModelOutput
   //@@     model.
   //@@
   bool is_shape_tensor = 6;
+
+  //@@  .. cpp:var:: bool is_non_linear_format_io
+  //@@
+  //@@     Indicates whether the output tensor uses a non-linear IO format. This
+  //@@     field is currently supported only for TensorRT models. An error will
+  //@@     be generated if this specification does not comply with the
+  //@@     underlying model.
+  //@@
+  bool is_non_linear_format_io = 7;
 }
 
 //@@  .. cpp:var:: message BatchInput