xxxxxxxxxx
11
1
curl --request POST \
2
     --url https://opt-mainnet.g.alchemy.com/v2/docs-demo \
3
     --header 'accept: application/json' \
4
     --header 'content-type: application/json' \
5
     --data '
6
{
7
  "id": 1,
8
  "jsonrpc": "2.0",
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  "method": "eth_blockNumber"
10
}
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'