Azure update_management_schedule variable input value is not accepting

Hi,
I am trying to use terraform-azurerm-run-iaas-master from gituhub but input parameter value is not accepting .
var.update_management_schedule
List of Map with schedule parameters for update management. All parameters are available on the documentation

Enter a value: [“2023-04-15T18:00:15+02:00”,“2025-04-15T18:00:15+02:00”,true,1,“UTC”]


│ Error: Insufficient features blocks

│ on line 0:
│ (source code not available)

│ At least 1 “features” blocks are required.

PS C:\terraform\terraform-azurerm-run-iaas-master>

Any suggestion will be greatly appreciate.
Thanks
Pramod