python -m deeppavlov install ner_ontonotes_bert with --proxy

[Yangxiaojun1230]

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What problem are we trying to solve?:

I tried to install the tool in internal network which has a proxy to connect to outside network
python -m deeppavlov install ner_ontonotes_bert
Error: Failed to establish a new connection:

How can we solve it?:

add a parameter --proxy

Are there other issues that block this solution?: