Render image interface

def get_render_configurations(self, request, **kwargs):
        """Render image interface"""

        data = self.process_form_data(self._get_form_defaults(), kwargs)
        variable_set = self.get_variable_set(self.service.variable_set.order_by('index'), data)

        base_config = ImageConfiguration(
            extent=data['bbox'],
            size=data['size'],
            image_format=data['image_format'],
            background_color=TRANSPARENT_BACKGROUND_COLOR if data.get('transparent') else DEFAULT_BACKGROUND_COLOR
        )

        return base_config, self.apply_time_to_configurations([RenderConfiguration(v) for v in variable_set], data)