add python API and examples for TTS (#364)

sherpa-onnx/python/csrc/offline-tts-vits-model-config.cc

@@ -0,0 +1,27 @@
+// sherpa-onnx/python/csrc/offline-tts-vits-model-config.cc
+//
+// Copyright (c)  2023  Xiaomi Corporation
+
+#include "sherpa-onnx/python/csrc/offline-tts-vits-model-config.h"
+
+#include <string>
+
+#include "sherpa-onnx/csrc/offline-tts-vits-model-config.h"
+
+namespace sherpa_onnx {
+
+void PybindOfflineTtsVitsModelConfig(py::module *m) {
+  using PyClass = OfflineTtsVitsModelConfig;
+
+  py::class_<PyClass>(*m, "OfflineTtsVitsModelConfig")
+      .def(py::init<>())
+      .def(py::init<const std::string &, const std::string &,
+                    const std::string &>(),
+           py::arg("model"), py::arg("lexicon"), py::arg("tokens"))
+      .def_readwrite("model", &PyClass::model)
+      .def_readwrite("lexicon", &PyClass::lexicon)
+      .def_readwrite("tokens", &PyClass::tokens)
+      .def("__str__", &PyClass::ToString);
+}
+
+}  // namespace sherpa_onnx