post https://api.shasta.trongrid.io/walletsolidity/getdelegatedresourceaccountindexv2
Stake 2.0 API：查询某地址的资源委托索引（已固化状态）。返回两个列表，一个是该帐户将资源委托给的地址列表(toAddress)，另一个是将资源委托给该帐户的地址列表(fromAddress)
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Try It! to start a request and see the response here!