Number of examples per batch provided to `function` if `batched=True`.
            drop_last_batch (`bool`, defaults to `False`):
                Whether a last batch smaller than the `batch_size` should be
                dropped instead of being processed by the function.
            remove_columns (`[List[str]]`, *optional*, defaults to `None`):
                Remove a selection of columns while doing the mapping.
                Columns will be removed before updating the examples with the output of `function`, i.e. if `function` is adding
                columns with names in `remove_columns`, these columns will be kept.
            fn_kwargs (`Dict`, *optional*, defaults to `None`):
                Keyword arguments to be passed to `function`