code: def vcmp_host(opt_vcmp_host, opt_username, opt_password, opt_port):
      '''vcmp fixture'''
      m = ManagementRoot(
          opt_vcmp_host, opt_username, opt_password, port=opt_port)
      return f vcmp_host(opt_vcmp_host, opt_username, opt_password, opt_port):
      '''vcmp fixture'''
      m = ManagementRoot(
          opt_vcmp_host, opt_username, opt_password, port=opt_port)
      return m
docs: vcmp fixture