Values_4.ModifyAvailabilityZoneGroupResultSourceChanges the opt-in status of the specified zone group for your account.
type nonrec t = {return : Values_0.Boolean.t option;Is true if the request succeeds, and an error otherwise.
*)}val error_of_json :
'a ->
Yojson.Safe.t ->
[> `Unknown_operation_error of 'a * string option ]