RPC Helper

const blockNumber = await pn.rpc('eth_blockNumber');
const balance = await pn.rpc('eth_getBalance', ['0xabc...', 'latest']);
console.log({ blockNumber, balance });

block_number = pn.rpc("eth_blockNumber")
balance = pn.rpc("eth_getBalance", ["0xabc...", "latest"])
print(block_number, balance)

let block_number = client
    .rpc_call("eth_blockNumber", serde_json::json!([]))
    .await?;
let balance = client
    .rpc_call("eth_getBalance", serde_json::json!(["0xabc...", "latest"]))
    .await?;
println!("{block_number} {balance}");