Calculates network fee for the specified transaction.
tx: Base64-encoded string of transaction information.
{
"jsonrpc": "2.0",
"method": "calculatenetworkfee",
"params": ["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"],
"id": 1
}
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"networkfee": "23848400"
}
}