Getting ERROR SSL: CERTIFICATE_VERIFY_FAILED

[ukiras123]

I just followed the document and I am getting error
httpx.ConnectError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1129)
/Users/kiran.gautam/PycharmProjects/nepse-api/venv/lib/python3.9/site-packages/httpx/_client.py:1978: UserWarning: Unclosed <httpx.AsyncClient object at 0x109637070>. See https://www.python-httpx.org/async/#opening-and-closing-clients for details.

I am not sure if I am doing something wrong or if there is some issue!