def get_field_deserializers(self,) -> dict[str, Callable[[ParseNode], None]]:
        """
        The deserialization information for the current model
        Returns: dict[str, Callable[[ParseNode], None]]
        """
        from .entity import Entity
        from .virtual_event_attendee_registration_status import VirtualEventAttendeeRegistrationStatus
        from .virtual_event_external_registration_information import VirtualEventExternalRegistrationInformation
        from .virtual_event_registration_question_answer import VirtualEventRegistrationQuestionAnswer
        from .virtual_event_session import VirtualEventSession

        from .entity import Entity
        from .virtual_event_attendee_registration_status import VirtualEventAttendeeRegistrationStatus
        from .virtual_event_external_registration_information import VirtualEventExternalRegistrationInformation
        from .virtual_event_registration_question_answer import VirtualEventRegistrationQuestionAnswer
        from .virtual_event_session import VirtualEventSession

        fields: dict[str, Callable[[Any], None]] = {
            "cancelationDateTime": lambda n : setattr(self, 'cancelation_date_time', n.get_datetime_value()),
            "email": lambda n : setattr(self, 'email', n.get_str_value()),
            "externalRegistrationInformation": lambda n : setattr(self, 'external_registration_information', n.get_object_value(VirtualEventExternalRegistrationInformation)),
            "firstName": lambda n : setattr(self, 'first_name', n.get_str_value()),
            "lastName": lambda n : setattr(self, 'last_name', n.get_str_value()),
            "preferredLanguage": lambda n : setattr(self, 'preferred_language', n.get_str_value()),
            "preferredTimezone": lambda n : setattr(self, 'preferred_timezone', n.get_str_value()),
            "registrationDateTime": lambda n : setattr(self, 'registration_date_time', n.get_datetime_value()),
            "registrationQuestionAnswers": lambda n : setattr(self, 'registration_question_answers', n.get_collection_of_object_values(VirtualEventRegistrationQuestionAnswer)),
            "sessions": lambda n : setattr(self, 'sessions', n.get_collection_of_object_values(VirtualEventSession)),
            "status": lambda n : setattr(self, 'status', n.get_enum_value(VirtualEventAttendeeRegistrationStatus)),
            "userId": lambda n : setattr(self, 'user_id', n.get_str_value()),
        }
        super_fields = super().get_field_deserializers()
        fields.update(super_fields)
        return fields

        The deserialization information for the current model
        Returns: dict[str, Callable[[ParseNode], None]]
        
msgraph/generated/models/virtual_event_registration.py