code: def check_privatenet(self):
          
          rpc_settings.setup(self.RPC_LIST)
          client = RPCClient()
  
          try:
              version = client.get_version()
          except NEORPCException:
              raise PrivnetConnectionError("Error: private network container doesn't seem to be running, or RPC is not enabled.")
  
          print("Privatenet useragent '%s', nonce: %s" % (version["useragent"], version["nonce"]))
  
          # Now check if nonce is the same as in the chain path
          nonce_container = str(version["nonce"])
          neopy_chain_meta_filename = os.path.join(self.chain_leveldb_path, ".privnet-nonce")
          if os.path.isfile(neopy_chain_meta_filename):
              nonce_chain = open(neopy_chain_meta_filename, "r").read()
              if nonce_chain != nonce_container:
                  raise PrivnetConnectionError(
                      "Chain database in Chains/privnet is for a different private network than the current container. "
                      "Consider deleting the Chain directory with 'rm -rf %s*'." % self.chain_leveldb_path
                  )
          else:
              # When the Chains/privnet folder is removed, we need to create the directory
              if not os.path.isdir(self.chain_leveldb_path):
                  os.mkdir(self.chain_leveldb_path)
  
              # Write the nonce to the meta file
              with open(neopy_chain_meta_filename, "w") as f:
                  f.write(nonce_container)
docs: Check if privatenet is running, and if container is same as the current Chains/privnet database.
  
          Raises:
              PrivnetConnectionError: if the private net couldn't be reached or the nonce does not match