code: def write_text(filename, data, add=False):
      
      write_type = 'a' if add else 'w'
      with open(filename, write_type) as file:
          print(data, end='', file=file)
docs: Write image data to text file
  
      :param filename: name of text file to write data to
      :type filename: str
      :param data: image data to write to text file
      :type data: numpy array
      :param add: whether to append to existing file or not. Default is ``False``
      :type add: bool