Refactor: replace utils.HParams with HyperParameters Pydantic model

HyperParameters is largely a drop-in replacement for utils.HParams, which ensures type safety for hyper-parameters.

style_bert_vits2/models/utils.py

@@ -355,45 +355,3 @@ def check_git_hash(model_dir):
             )
     else:
         open(path, "w").write(cur_hash)
-
-
-def get_hparams_from_file(config_path):
-    # print("config_path: ", config_path)
-    with open(config_path, "r", encoding="utf-8") as f:
-        data = f.read()
-    config = json.loads(data)
-
-    hparams = HParams(**config)
-    return hparams
-
-
-class HParams:
-    def __init__(self, **kwargs):
-        for k, v in kwargs.items():
-            if type(v) == dict:
-                v = HParams(**v)
-            self[k] = v
-
-    def keys(self):
-        return self.__dict__.keys()
-
-    def items(self):
-        return self.__dict__.items()
-
-    def values(self):
-        return self.__dict__.values()
-
-    def __len__(self):
-        return len(self.__dict__)
-
-    def __getitem__(self, key):
-        return getattr(self, key)
-
-    def __setitem__(self, key, value):
-        return setattr(self, key, value)
-
-    def __contains__(self, key):
-        return key in self.__dict__
-
-    def __repr__(self):
-        return self.__dict__.__repr__()