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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _make_request(self, bbox, meta_info, timestamps):
 """ Make OGC request to create input for cloud detector classifier :param bbox: Bounding box :param meta_info: Meta-info dictionary of input eopatch :return: Requested data """

        service_type = ServiceType(meta_info['service_type'])

        # Raise error if resolutions are not specified
        if self.cm_size_x is None and self.cm_size_y is None:
            raise ValueError("Specify size_x and size_y for data request")

        # If WCS request, make sure both resolutions are set
        if service_type == ServiceType.WCS:
            if self.cm_size_y is None:
                self.cm_size_y = self.cm_size_x
            elif self.cm_size_x is None:
                self.cm_size_x = self.cm_size_y

        custom_url_params = {CustomUrlParam.SHOWLOGO: False,
                             CustomUrlParam.TRANSPARENT: False,
                             CustomUrlParam.EVALSCRIPT: self.model_evalscript}

        request = {ServiceType.WMS: self._get_wms_request,
                   ServiceType.WCS: self._get_wcs_request}[service_type](bbox,
                                                                         meta_info['time_interval'],
                                                                         self.cm_size_x,
                                                                         self.cm_size_y,
                                                                         meta_info['maxcc'],
                                                                         meta_info['time_difference'],
                                                                         custom_url_params)

        request_dates = request.get_dates()
        download_frames = get_common_timestamps(request_dates, timestamps)

        request_return = request.get_data(raise_download_errors=False, data_filter=download_frames)
        bad_data = [idx for idx, value in enumerate(request_return) if value is None]
        for idx in reversed(sorted(bad_data)):
            LOGGER.warning('Data from %s could not be downloaded for %s!', str(request_dates[idx]), self.data_feature)
            del request_return[idx]
            del request_dates[idx]

        return np.asarray(request_return), request_dates