diff --git a/build.zig b/build.zig
index 1b46445..a05cbcf 100644
--- a/build.zig
+++ b/build.zig
@@ -15,16 +15,23 @@ pub fn build(b: *std.Build) !void {
     const mode = b.standardOptimizeOption(.{});
     const target = b.standardTargetOptions(.{});
 
+    var build_opts = b.addOptions();
+    build_opts.addOption(
+        bool,
+        "inspector_subtype",
+        b.option(bool, "inspector_subtype", "Export default valueSubtype and descriptionForValueSubtype") orelse true,
+    );
+
     _ = createGetTools(b);
     _ = createGetV8(b, icu);
 
     const v8 = try createV8_Build(b, target, mode, use_zig_tc, icu);
 
-    const create_test = createTest(b, target, mode, use_zig_tc);
+    const create_test = createTest(b, target, mode, use_zig_tc, build_opts);
     const run_test = b.addRunArtifact(create_test);
     b.step("test", "Run tests.").dependOn(&run_test.step);
 
-    const build_exe = createCompileStep(b, path, target, mode, use_zig_tc);
+    const build_exe = createCompileStep(b, path, target, mode, use_zig_tc, build_opts);
     b.step("exe", "Build exe with main file at -Dpath").dependOn(&build_exe.step);
 
     const run_exe = b.addRunArtifact(build_exe);
@@ -510,13 +517,14 @@ fn linkV8(b: *std.Build, step: *std.Build.Step.Compile, use_zig_tc: bool) void {
     }
 }
 
-fn createTest(b: *std.Build, target: std.Build.ResolvedTarget, mode: std.builtin.Mode, use_zig_tc: bool) *std.Build.Step.Compile {
+fn createTest(b: *std.Build, target: std.Build.ResolvedTarget, mode: std.builtin.Mode, use_zig_tc: bool, build_opts: *std.Build.Step.Options) *std.Build.Step.Compile {
     const step = b.addTest(.{
         .root_source_file = b.path("./src/test.zig"),
         .target = target,
         .optimize = mode,
         .link_libc = true,
     });
+    step.root_module.addImport("default_exports", build_opts.createModule());
     step.addIncludePath(b.path("./src"));
     linkV8(b, step, use_zig_tc);
     return step;
@@ -733,7 +741,7 @@ pub const GetV8SourceStep = struct {
     }
 };
 
-fn createCompileStep(b: *std.Build, path: []const u8, target: std.Build.ResolvedTarget, mode: std.builtin.Mode, use_zig_tc: bool) *std.Build.Step.Compile {
+fn createCompileStep(b: *std.Build, path: []const u8, target: std.Build.ResolvedTarget, mode: std.builtin.Mode, use_zig_tc: bool, build_opts: *std.Build.Step.Options) *std.Build.Step.Compile {
     const basename = std.fs.path.basename(path);
     const i = std.mem.indexOf(u8, basename, ".zig") orelse basename.len;
     const name = basename[0..i];
@@ -746,7 +754,7 @@ fn createCompileStep(b: *std.Build, path: []const u8, target: std.Build.Resolved
         .link_libc = true,
     });
     step.addIncludePath(b.path("src"));
-
+    step.root_module.addImport("default_exports", build_opts.createModule());
     if (mode == .ReleaseSafe) {
         step.root_module.strip = true;
     }
diff --git a/src/binding.cpp b/src/binding.cpp
index a2f9933..14877c2 100644
--- a/src/binding.cpp
+++ b/src/binding.cpp
@@ -1715,6 +1715,10 @@ void v8_inspector__Client__IMPL__consoleAPIMessage(
     unsigned columnNumber, v8_inspector::V8StackTrace *stackTrace);
 const v8::Context* v8_inspector__Client__IMPL__ensureDefaultContextInGroup(
     v8_inspector__Client__IMPL* self, void* data, int contextGroupId);
+char* v8_inspector__Client__IMPL__valueSubtype(
+    v8_inspector__Client__IMPL* self, v8::Local<v8::Value> value);
+char* v8_inspector__Client__IMPL__descriptionForValueSubtype(
+    v8_inspector__Client__IMPL* self, v8::Local<v8::Context> context, v8::Local<v8::Value> value);
 
 // c++ implementation (just wrappers around the c/zig functions)
 } // extern "C"
@@ -1742,6 +1746,14 @@ void v8_inspector__Client__IMPL::consoleAPIMessage(
 v8::Local<v8::Context> v8_inspector__Client__IMPL::ensureDefaultContextInGroup(int contextGroupId) {
   return ptr_to_local(v8_inspector__Client__IMPL__ensureDefaultContextInGroup(this, this->data, contextGroupId));
 }
+std::unique_ptr<v8_inspector::StringBuffer> v8_inspector__Client__IMPL::valueSubtype(v8::Local<v8::Value> value) {
+    auto subType = v8_inspector__Client__IMPL__valueSubtype(this, value);
+    return v8_inspector::StringBuffer::create(toStringView(subType));
+}
+std::unique_ptr<v8_inspector::StringBuffer> v8_inspector__Client__IMPL::descriptionForValueSubtype(v8::Local<v8::Context> context, v8::Local<v8::Value> value) {
+    auto descriptions = v8_inspector__Client__IMPL__descriptionForValueSubtype(this, context, value);
+    return v8_inspector::StringBuffer::create(toStringView(descriptions));
+}
 
 extern "C" {
 
diff --git a/src/binding.h b/src/binding.h
index 867c273..d4aa86a 100644
--- a/src/binding.h
+++ b/src/binding.h
@@ -988,6 +988,10 @@ void v8_inspector__Client__IMPL__consoleAPIMessage(
     unsigned columnNumber, StackTrace *StackTrace);
 const Context* v8_inspector__Client__IMPL__ensureDefaultContextInGroup(
     InspectorClientImpl* self, void* data, int contextGroupId);
+const Context* v8_inspector__Client__IMPL__valueSubtype(
+    InspectorClientImpl* self, Value value);
+const Context* v8_inspector__Client__IMPL__descriptionForValueSubtype(
+    InspectorClientImpl* self, Context context, Value value);
 
 // InspectorSession
 
diff --git a/src/inspector.h b/src/inspector.h
index 452a1cf..8c710ef 100644
--- a/src/inspector.h
+++ b/src/inspector.h
@@ -39,6 +39,8 @@ class v8_inspector__Client__IMPL
                          unsigned lineNumber, unsigned columnNumber,
                          v8_inspector::V8StackTrace* stackTrace) override;
   v8::Local<v8::Context> ensureDefaultContextInGroup(int contextGroupId) override;
+  std::unique_ptr<v8_inspector::StringBuffer> valueSubtype(v8::Local<v8::Value>) override;
+  std::unique_ptr<v8_inspector::StringBuffer> descriptionForValueSubtype(v8::Local<v8::Context>, v8::Local<v8::Value>) override;
 };
 
 #endif // V8INSPECTORIMPL_H
diff --git a/src/v8.zig b/src/v8.zig
index 8369bec..e8b8c45 100644
--- a/src/v8.zig
+++ b/src/v8.zig
@@ -1,7 +1,7 @@
 const std = @import("std");
 const t = std.testing;
 
-const c = @cImport({
+pub const c = @cImport({
     @cInclude("binding.h");
 });
 
@@ -2551,6 +2551,27 @@ pub export fn v8_inspector__Client__IMPL__ensureDefaultContextInGroup(
     return inspector.ctx_handle;
 }
 
+
+usingnamespace if (@import("default_exports").inspector_subtype) struct {
+    pub export fn v8_inspector__Client__IMPL__valueSubtype(
+        _: *c.InspectorClientImpl,
+        value: *const c.Value,
+    ) callconv(.C) [*c]const u8 {
+        _ = value;
+        return null;
+    }
+
+    pub export fn v8_inspector__Client__IMPL__descriptionForValueSubtype(
+        _: *c.InspectorClientImpl,
+        context: *const c.Context,
+        value: *const c.Value,
+    ) callconv(.C) [*c]const u8 {
+        _ = value;
+        _ = context;
+        return null;
+    }
+} else struct {};
+
 // InspectorChannel
 
 pub const InspectorChannel = struct {