docs: def set_progress(how):
      """ Enables or disables the progress bars for the loading, writing and downloading
      of datasets
  
      :param how: True if you want the progress bar, False otherwise
      :return: None
  
      Example::
  
          import gmql as gl
  
          gl.set_progress(True)   # abilitates progress bars
          # ....do something...
          gl.set_progress(False)  # removes progress bars
          # ....do something...
      """
      global __progress_bar
      if isinstance(how, bool):
          __progress_bar = how
      else:
          raise ValueError(
              "how must be a boolean. {} was found".format(type(how)))