runtime error

Traceback (most recent call last): File "app.py", line 13, in <module> from googletrans import Translator, constants File "/usr/local/lib/python3.8/site-packages/googletrans/__init__.py", line 6, in <module> from googletrans.client import Translator File "/usr/local/lib/python3.8/site-packages/googletrans/client.py", line 30, in <module> class Translator: File "/usr/local/lib/python3.8/site-packages/googletrans/client.py", line 62, in Translator proxies: typing.Dict[str, httpcore.SyncHTTPTransport] = None, AttributeError: module 'httpcore' has no attribute 'SyncHTTPTransport'

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