# Top-level functions

Here are the top-level functions available in Narwhals.

::: narwhals
    handler: python
    options:
      members:
        - all
        - all_horizontal
        - any_horizontal
        - col
        - concat
        - concat_str
        - exclude
        - from_arrow
        - from_dict
        - from_native
        - from_numpy
        - generate_temporary_column_name
        - get_level
        - get_native_namespace
        - is_ordered_categorical
        - len
        - lit
        - max
        - max_horizontal
        - maybe_align_index
        - maybe_convert_dtypes
        - maybe_get_index
        - maybe_reset_index
        - maybe_set_index
        - mean
        - mean_horizontal
        - median
        - min
        - min_horizontal
        - narwhalify
        - new_series
        - nth
        - read_csv
        - read_parquet
        - scan_csv
        - scan_parquet
        - sum
        - sum_horizontal
        - show_versions
        - to_native
        - to_py_scalar
        - when
      show_source: false
