code: def set_defaults(show_toolbar=None,
                   precision=None,
                   grid_options=None,
                   column_options=None):
      
      defaults.set_defaults(show_toolbar=show_toolbar,
                            precision=precision,
                            grid_options=grid_options,
                            column_options=column_options)
docs: Set the default qgrid options.  The options that you can set here are the
      same ones that you can pass into ``QgridWidget`` constructor, with the
      exception of the ``df`` option, for which a default value wouldn't be
      particularly useful (since the purpose of qgrid is to display a DataFrame).
  
      See the documentation for ``QgridWidget`` for more information.
  
      Notes
      -----
      This function will be useful to you if you find yourself
      setting the same options every time you create a QgridWidget. Calling
      this ``set_defaults`` function once sets the options for the lifetime of
      the kernel, so you won't have to include the same options every time you
      instantiate a ``QgridWidget``.
  
      See Also
      --------
      QgridWidget :
          The widget whose default behavior is changed by ``set_defaults``.