code: def isNullOrBlank(self: Column) -> Column:
      r"""Returns a Boolean value which expresses whether a given column is ``null`` or contains only blank characters.
  
      :param \*\*self: The  :class:`Column` to check.
  
      :returns: A `Column` containing ``True`` if the column is ``null`` or only contains
      blank characters, or ``False`` otherwise.
      :rtype: Column
      """
      return (self.isNull()) | (trim(self) == "")
  
file_path: quinn/quinn/extensions/column_ext.py
imports: from __future__ import annotations
  from typing import Any
  from pyspark.sql.column import Column
  from pyspark.sql.functions import lit, trim, when
label_desc: Use image node_id 5 for calling a global function with example usage: isNullOrBlank() and returns: unknown