code: def single_space(col: Column) -> Column:
      """Function takes a column and replaces all the multiple white spaces with a single space.
  
      It then trims the column to make all the texts consistent.
  
      :param col: The column which needs to be spaced
      :type col: Column
      :returns: A trimmed column with single space
      :rtype: Column
      """
      return F.trim(F.regexp_replace(col, " +", " "))
  
imports: from __future__ import annotations
  from typing import TYPE_CHECKING
  import re
  import uuid
  from typing import Any
  import pyspark.sql.functions
  from pyspark.sql.types import ArrayType, BooleanType, StringType
label_desc: Use image node_id 1 for calling a global function with example usage: single_space(col) and returns: F