parameters: (self, formatter, filename=None)
docstring: Helper class for writing query output.
  
      User should invoke the `write(data)` method of this object.
      `data` is a list of lists.
docstring_summary: Helper class for writing query output.
docstring_tokens: Helper class for writing query output .
function: def __init__(self, formatter, filename=None):
      """Helper class for writing query output.
  
      User should invoke the `write(data)` method of this object.
      `data` is a list of lists.
      """
      self.formatter = formatter
      self.filename = filename
function_tokens: def __init__ ( self , formatter , filename = None ) : self . formatter = formatter self . filename = filename