in core/util.py [0:0]
def deserialize(file, *, format):
if format in ("yaml", "yml"):
state = deserialize_yaml(file)
elif format == "json":
state = deserialize_json(file)
elif format == "ndjson":
state = deserialize_ndjson(file)
else:
raise ConfigError(f"unsupported format: {format}")
return state