default void traceStartBlock(
      final ProcessableBlockHeader processableBlockHeader, final Address miningBeneficiary) {}
When building a block this API is called at the start of the process

@param processableBlockHeader the processable header
@param miningBeneficiary the address of miner building the block
plugin-api/src/main/java/org/hyperledger/besu/plugin/services/tracer/BlockAwareOperationTracer.java