code: def build_clusters(server_list, replicas):
      servers = []
      with open(server_list) as f:
          for line in f:
              servers.append(line.strip())
      cmd = "echo yes | redis-cli --cluster create"
      for server in servers:
          cmd += " %s " % server
      cmd += "--cluster-replicas %s" % replicas
      print(cmd)
      os.system(cmd)
  
label_desc: Use image node_id 1 for calling a global function with example usage: build_clusters(server_list, replicas) without return types