copyWith method
Implementation
CallbackUserData copyWith(
{String? name,
String? phone,
String? email,
String? gender,
String? dob,
String? address}) {
return CallbackUserData(
name: name ?? this.name,
phone: phone ?? this.phone,
email: email ?? this.email,
gender: gender ?? this.gender,
dob: dob ?? this.dob,
address: address ?? this.address);
}