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What I did
Added Xdai to network config.
Enabled fetching ABI from blockscout api
Note: Although the blockscout api tries to be similar to etherscan, there are a few dis-similarities (mainly in naming conventions and return values)
Related issue: #934
How I did it
Handled the case when the explorer api is set to blockscout, easy to identify due to naming conventions and url
How to verify it
Drop into a brownie console and try fetching the source of a contract. here is one: 0x22Bd2A732b39dACe37AE7E8f50A186f3D9702e87
Checklist