code: def _size_is_needed(layer):
      
      exposure = layer.keywords.get('exposure')
      if not exposure:
          # The layer is not an exposure.
          return False
  
      indivisible_exposure_keys = [f['key'] for f in indivisible_exposure]
      if exposure in indivisible_exposure_keys:
          # The exposure is not divisible, We don't need to compute the size.
          return False
  
      if layer.geometryType() == QgsWkbTypes.PointGeometry:
          # The exposure is a point layer. We don't need to compute the size.
          return False
  
      # The layer is divisible and not a point layer.
      # We need to check if some fields are absolute.
  
      fields = layer.keywords['inasafe_fields']
  
      absolute_field_keys = [f['key'] for f in count_fields]
  
      for field in fields:
          if field in absolute_field_keys:
              return True
      else:
          return False
docs: Checker if we need the size field.
  
      :param layer: The layer to test.
      :type layer: QgsVectorLayer
  
      :return: If we need the size field.
      :rtype: bool