How to modify data inside array in SwiftUI

class SearchObject: ObservableObject {
    let name: String
    let search: (String) -> [Country]
    var text: String = ""

    init(name: String, search: @escaping (String) -> [Country]) {
        self.name = name
        self.search = search
    }
}

self.$searchObjects[index].text

struct SearchScreen: View {
    @State var searchObjects: [SearchObject] = [
        SearchObject(name: "By name", search: { CountryManager.shared.search(byName: $0) }),
        SearchObject(name: "By calling code", search: { CountryManager.shared.search(byCallingCode: $0) }),
        SearchObject(name: "By domain", search: { CountryManager.shared.search(byDomain: $0) }),
        SearchObject(name: "By language", search: { CountryManager.shared.search(byLanguage: $0) })
    ]

    var body: some View {
        ScrollView {
            VStack(alignment: .leading) {
                ForEach(searchObjects.enumerated().map({ $0 }), id: \.element.name, content: { index, searchObject in
                    VStack(alignment: .leading) {
                        Text(searchObject.name)
                            .styleLabel()
                        TextField(searchObject.textFieldName, text: self.$searchObjects[index].text)
                            .styleTitle()
                        self.makeButton(searchObject: self.searchObjects[index])
                    }
                })
            }
        }
    }
}