parameters: (self)
return_statement: return len(self._img_ids)
docstring: Returns size of the dataset
docstring_summary: Returns size of the dataset
docstring_tokens: Returns size of the dataset
function: def __len__(self):
          """ Returns size of the dataset """
          return len(self._img_ids)
function_tokens: def __len__ ( self ) : return len ( self . _img_ids )