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Ethereum JSON-RPC filter methods missing and EVM log subscription issues

Ethereum JSON-RPC filter methods missing and EVM log subscription issues: a task in LegoFlow-SWE (Harbor dataset). Missing filter methods The following standard Ethereum RPC methods are not implemented or return errors when called: - eth newFilter – to create a new event log filter with criteria (…

The task

**Missing filter methods** The following standard Ethereum RPC methods are not implemented or return errors when called: - `eth_newFilter` – to create a new event log filter with criteria (`fromBlock`, `toBlock`, `address`, `topics`). Should return a filter ID (hex string). - `eth_getFilterChanges` – to poll a filter…

Part of Lego-X/LegoFlow-SWE.