code: def get_processing_block_ids(self):
          
  
          # Initialise empty list
          _processing_block_ids = []
  
          # Pattern used to search processing block ids
          pattern = '*:processing_block:*'
          block_ids = self._db.get_ids(pattern)
  
          for block_id in block_ids:
              id_split = block_id.split(':')[-1]
              _processing_block_ids.append(id_split)
          return sorted(_processing_block_ids)
docs: Get list of processing block ids using the processing block id