code: def validate_entities(self, model, context=None):
          
          result = Result()
          for property_name in self.entities:
              prop = self.entities[property_name]
              value = self.get(model, property_name)
  
              errors = prop.validate(
                  value=value,
                  model=model,
                  context=context
              )
              if len(errors):
                  result.add_entity_errors(
                      property_name=property_name,
                      direct_errors=errors
                  )
  
              if value is None:
                  continue
  
              schema_valid = prop.validate_with_schema(
                  model=value,
                  context=context
              )
              if schema_valid == False:
                  result.add_entity_errors(
                      property_name,
                      schema_errors=schema_valid.errors
                  )
  
          return result
docs: Validate entity properties
          Performs validation on entity properties to return a result object.
          :param model:  object or dict
          :param context: object, dict or None
          :return: shiftschema.result.Result