# Implement CallTracer and PrestateTracer PrestateTracer was already implemented as a part of the mvp aka #267. Now that we are no longer blocked on polkadot-sdk not exposing necessary interfaces we can implement both the CallTracer and PrestateTracer. ### Notes - Create and Call traces require special handling for the first entry in the trace - `expectEmit` cheatcode depends on `CallTrace::CallLog`