@Override
    public boolean isStopped() {
      return true;
    }
Get the {@link P2PNetwork} that assumes a given {@link Peer} as the local node. This does not
connect {@link Peer} to any other peer. Any connections established by {@link #connect(Peer,
Peer)} require that both participating {@link Peer} have previously been passed to this method.

@param peer Peer to get {@link P2PNetwork} for
@return P2PNetwork as seen by {@link Peer}
ethereum/mock-p2p/src/main/java/org/hyperledger/besu/ethereum/p2p/testing/MockNetwork.java