.swift

class RegistrationViewModel: ObservableObject {
   
    @Validated(.required(errorMessage: "First name cannot be empty"))
    var firstname: String? = ""
   
    @Validated(.required(errorMessage: "Last name cannot be empty"))
    var lastname: String? = ""
   
    @Validated(.required(errorMessage: "Username cannot be empty"))
    var username: String? = ""
   
    @Validated(.required(errorMessage: "Password cannot be empty"))
    var password: String? = ""