fetchMemory :: History -> Word64 -> Word64 -> Maybe [Word8]
fetchMemory hist addr size =
    queryCmd (\worker -> fetchMemoryWorker worker addr size) hist
fetchMemory :: History -> Word64 -> Word64 -> Maybe [Word8]
fetchMemory hist addr size =
    queryCmd (\worker -> fetchMemoryWorker worker addr size) hist
fetchMemory hist addr size =
    queryCmd (\worker -> fetchMemoryWorker worker addr size) hist