Wes xx mediapipe integration

Packages/com.github.homuler.mediapipe/Runtime/Scripts/PInvoke/NativeMethods/External/Stdlib_Safe.cs

@@ -0,0 +1,19 @@
+// Copyright (c) 2021 homuler
+//
+// Use of this source code is governed by an MIT-style
+// license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
+using System;
+using System.Diagnostics.Contracts;
+using System.Runtime.InteropServices;
+
+namespace Mediapipe
+{
+  internal static partial class SafeNativeMethods
+  {
+    [Pure, DllImport(MediaPipeLibrary, ExactSpelling = true)]
+    [return: MarshalAs(UnmanagedType.I1)]
+    public static extern bool mp_StatusOrString__ok(IntPtr statusOrString);
+  }
+}