toJson method

Implementation

Map<String, dynamic> toJson() {
  return <String, dynamic>{
    'username': username,
    'email': email,
    'password': password,
    'agreement': agreement,
    'locale': locale,
    if (reason != null) 'reason': reason,
    if (dateOfBirth != null) 'date_of_birth': dateOfBirth,
  };
}