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