Azure ARM Copy Function with Objects

azNsgCopy.json

{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "networkSecurityGroupsSettings": {
            "type": "object"
        }
    },
    "resources": [

        {
            "apiVersion": "2020-11-01",
            "type": "Microsoft.Network/networkSecurityGroups",
            "name": "NSG1",
            "location": "[resourceGroup().location]",
            "properties": {
                "copy": [
                    {
                        "name": "securityRules",
                        "count": "[length(parameters('networkSecurityGroupsSettings').securityRules)]",
                        "input": {
                            "name": "[parameters('networkSecurityGroupsSettings').securityRules[copyIndex('securityRules')].name]",
                            "properties": {

                                "description": "[parameters('networkSecurityGroupsSettings').securityRules[copyIndex('securityRules')].description]",
                                "priority": "[parameters('networkSecurityGroupsSettings').securityRules[copyIndex('securityRules')].priority]",
                                "protocol": "[parameters('networkSecurityGroupsSettings').securityRules[copyIndex('securityRules')].protocol]",
                                "sourcePortRange": "[parameters('networkSecurityGroupsSettings').securityRules[copyIndex('securityRules')].sourcePortRange]",
                                "destinationPortRange": "[parameters('networkSecurityGroupsSettings').securityRules[copyIndex('securityRules')].destinationPortRange]",
                                "sourceAddressPrefix": "[parameters('networkSecurityGroupsSettings').securityRules[copyIndex('securityRules')].sourceAddressPrefix]",
                                "destinationAddressPrefix": "[parameters('networkSecurityGroupsSettings').securityRules[copyIndex('securityRules')].destinationAddressPrefix]",
                                "access": "[parameters('networkSecurityGroupsSettings').securityRules[copyIndex('securityRules')].access]",
                                "direction": "[parameters('networkSecurityGroupsSettings').securityRules[copyIndex('securityRules')].direction]"
                            }
                        }
                    }
                ]
            }
        }
    ]
}