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diff --git a/sources/pyside6/libpyside/pysidevariantutils.h b/sources/pyside6/libpyside/pysidevariantutils.h
new file mode 100644
index 000000000..b53f7ce82
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+++ b/sources/pyside6/libpyside/pysidevariantutils.h
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+// Copyright (C) 2025 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef PYSIDEVARIANTUTILS_H
+#define PYSIDEVARIANTUTILS_H
+
+#include <sbkpython.h>
+
+#include <pysidemacros.h>
+
+#include <QtCore/qvariant.h>
+#include <QtCore/qvariantlist.h>
+
+#include <optional>
+
+namespace PySide::Variant
+{
+
+/// Return a QMetaType for a PyTypeObject for purposes of
+/// converting to a QVariant.
+PYSIDE_API QMetaType resolveMetaType(PyTypeObject *type);
+
+/// Convert a heterogenous Python list to a QVariantList by converting each
+/// item using the QVariant converter.
+PYSIDE_API std::optional<QVariantList> pyListToVariantList(PyObject *list);
+
+/// Converts a list to a QVariant following the PySide semantics:
+/// - A list of strings is returned as QVariant<QStringList>
+/// - A list of convertible values is returned as QVariant<QList<Value>>
+/// - Remaining types are returned as QVariant(QVariantList)
+PYSIDE_API QVariant convertToVariantList(PyObject *list);
+
+/// Converts a map to a QVariantMap (string keys and QVariant values)
+PYSIDE_API QVariant convertToVariantMap(PyObject *map);
+} // namespace PySide::Variant
+
+#endif // PYSIDEVARIANTUTILS_H