code: def add_datasets(self, datasets, datasets_to_check=None):
          # type: (List[Union[hdx.data.dataset.Dataset,Dict,str]], List[hdx.data.dataset.Dataset]) -> bool
          
          if datasets_to_check is None:
              datasets_to_check = self.get_datasets()
          alldatasetsadded = True
          for dataset in datasets:
              if not self.add_dataset(dataset, datasets_to_check=datasets_to_check):
                  alldatasetsadded = False
          return alldatasetsadded
docs: Add multiple datasets
  
          Args:
              datasets (List[Union[Dataset,Dict,str]]): A list of either dataset ids or dataset metadata from Dataset objects or dictionaries
              datasets_to_check (List[Dataset]): List of datasets against which to check existence of dataset. Defaults to datasets in showcase.
  
          Returns:
              bool: True if all datasets added or False if any already present