This takes a zone resource and overwrites the existing zone in GTM
gtm_zones_update(account_id, container_id, workspace_id, zone_id, zone_object)
Account Id
Container Id
Workspace Id
Zone Id
Zone Object
Other zone functions:
gtm_zones_create()
,
gtm_zones_delete()
,
gtm_zones_get()
,
gtm_zones_list()
,
gtm_zones_revert()