code: def _complete_column(column, df, sort):
      """
      Args:
          column: scalar/list/dict
          df: Pandas DataFrame
          sort: whether or not to sort the Series.
  
      Returns:
          A Pandas Series/DataFrame with no duplicates,
          or a dictionary of unique Pandas Series.
      """
  
      _, arr = pd.factorize(df.loc(axis=1)[column], sort=sort)
      return pd.Series(arr, name=column)
  
file_path: pyjanitor/janitor/functions/complete.py
imports: import functools
  from typing import Any, Dict, List, Optional, Tuple, Union
  import pandas
  import pandas_flavor
  from pandas.api.types import is_list_like, is_scalar
  from pandas.core.common import apply_if_callable
  from janitor.functions.utils import _computations_expand_grid
  from janitor.utils import check, check_column
label_desc: Use image node_id 4 for calling a global function with example usage: _complete_column(column, df, sort) and returns: pd