def serialize(self,writer: SerializationWriter) -> None:
        """
        Serializes information the current object
        param writer: Serialization writer to use to serialize this model
        Returns: None
        """
        if writer is None:
            raise TypeError("writer cannot be null.")
        writer.write_str_value("cameraMake", self.camera_make)
        writer.write_str_value("cameraModel", self.camera_model)
        writer.write_float_value("exposureDenominator", self.exposure_denominator)
        writer.write_float_value("exposureNumerator", self.exposure_numerator)
        writer.write_float_value("fNumber", self.f_number)
        writer.write_float_value("focalLength", self.focal_length)
        writer.write_int_value("iso", self.iso)
        writer.write_str_value("@odata.type", self.odata_type)
        writer.write_int_value("orientation", self.orientation)
        writer.write_datetime_value("takenDateTime", self.taken_date_time)
        writer.write_additional_data_value(self.additional_data)

        Serializes information the current object
        param writer: Serialization writer to use to serialize this model
        Returns: None
        
msgraph/generated/models/photo.py