text: import os
  import sys
  sys.path.append(os.path.dirname(os.path.abspath(os.path.dirname(os.path.abspath(os.path.dirname(__file__))))))
  import gslb
  
  # ref : https://cloud.kt.com/portal/openapi-guide/computing_enterprise-Server-server_api_make
  # Zone parameter : Mandatory
      # 1) KR-CA : KOR-Central A Zone
      # 2) KR-CB : KOR-Central B Zone
      # 3) KR-M  : KOR-Seoul M Zone
      # 4) KR-M2 : KOR-Seoul M2 Zone
  
  # simple example
  print(gslb.listGslbServer(zone='KR-M'))
  
  