private void clearBytes(final long location, final long numBytes) {
    // See getBytes for why we check length == 0 first, before calling asByteIndex(location).
    final int length = asByteLength(numBytes);
    if (length == 0) {
      return;
    }
    clearBytes(asByteIndex(location), length);
  }
Clears (set to 0) some contiguous number of bytes in memory.

@param location The location in memory from which to start clearing the bytes.
@param numBytes The number of bytes to clear.
evm/src/main/java/org/hyperledger/besu/evm/frame/Memory.java