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import json
from typing import Any, Dict
class Singleton(type):
_instances = {}
def __call__(cls, *args, **kwargs):
if cls not in cls._instances:
cls._instances[cls] = super().__call__(*args, **kwargs)
return cls._instances[cls]
def flatten_dict(
d: Dict[str, Any], parent_key: str = "", sep: str = "_"
) -> Dict[str, Any]:
items = []
for k, v in d.items():
new_key = parent_key + sep + k if parent_key else k
if isinstance(v, dict):
items.extend(flatten_dict(v, new_key, sep=sep).items())
else:
items.append((new_key, v))
return dict(items)
def load_json(path):
with open(path) as f:
try:
return json.load(f)
except json.decoder.JSONDecodeError as e:
with open(path) as f:
file_content = "\n".join(f.readlines())
raise RuntimeError(
f"Failed to decode json file at '{path}' with file content:\n{file_content}"
) from e
def save_json(path, data):
with open(path, "w") as f:
dumped = json.dumps(data, indent=4, ensure_ascii=False)
f.write(dumped)
f.write("\n")
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