docs: def process_array_includes(self, array, json):
          """Iterate through all `includes` and create a resource for every item.
  
          In addition map the resources under the `items_mapped` by the resource id and type.
  
          :param array: Array resource.
          :param json: Raw JSON dictionary.
          """
          includes = json.get('includes') or {}
          for key in array.items_mapped.keys():
              if key in includes:
                  for resource in includes[key]:
                      processed = self.from_json(resource)
                      array.items_mapped[key][processed.sys['id']] = processed