crete custom DELIVERY_STRATEGY based on carrierservice id

[sachiyablavant]

query {

    carrierService(id: "gid://shopify/DeliveryCarrierService/86511878447") {

      formattedName

      availableServicesForCountries(

        origins: ["gid://shopify/Location/85650735407"]

        countryCodes: [IN]

        restOfWorld: false

      ) {

        name,

        }

    }

  }
Response

{

    "data": {

        "carrierService": {

            "formattedName": "Custom zip code base shipping (Rates provided by app)",

            "availableServicesForCountries": [

                {

                    "name": "test1"

                }

            ]

        }

    },

    "extensions": {

        "cost": {

            "requestedQueryCost": 2,

            "actualQueryCost": 2,

            "throttleStatus": {

                "maximumAvailable": 1000.0,

                "currentlyAvailable": 998,

                "restoreRate": 50.0

            }

        }

    }

}
i want to add test2