+/**
+ * Copyright (c) 2013-2015, Christopher Jeffrey, Peter Sunde (MIT License)
+ * Copyright (c) 2016, Daniel Imms (MIT License).
+ * Copyright (c) 2018, Microsoft Corporation (MIT License).
+ */
+
+#ifndef NODE_PTY_PATH_UTIL_H_
+#define NODE_PTY_PATH_UTIL_H_
+
+#include <nan.h>
+
+#define MAX_ENV 65536
+
+namespace path_util {
+
+const wchar_t* to_wstring(const Nan::Utf8String& str);
+bool file_exists(std::wstring filename);
+std::wstring get_shell_path(std::wstring filename);
+
+} // namespace path_util
+
+#endif // NODE_PTY_PATH_UTIL_H_