parameters: (self)
docstring: Show array indices for the lines at the top and bottom of the output.
  
      For the top line and bottom line of the output display area, show the
      element indices of the array being displayed.
  
      Returns:
        If either the top of the bottom row has any matching array indices,
        a dict from line index (0 being the top of the display area, -1
        being the bottom of the display area) to array element indices. For
        example:
          {0: [0, 0], -1: [10, 0]}
        Otherwise, None.
docstring_summary: Show array indices for the lines at the top and bottom of the output.
docstring_tokens: Show array indices for the lines at the top and bottom of the output .
function: def _show_array_indices(self):
      """Show array indices for the lines at the top and bottom of the output.
  
      For the top line and bottom line of the output display area, show the
      element indices of the array being displayed.
  
      Returns:
        If either the top of the bottom row has any matching array indices,
        a dict from line index (0 being the top of the display area, -1
        being the bottom of the display area) to array element indices. For
        example:
          {0: [0, 0], -1: [10, 0]}
        Otherwise, None.
      """
  
      indices_top = self._show_array_index_at_line(0)
  
      output_top = self._output_top_row
      if self._main_menu_pad:
        output_top += 1
      bottom_line_index = (
          self._output_pad_screen_location.bottom - output_top - 1)
      indices_bottom = self._show_array_index_at_line(bottom_line_index)
  
      if indices_top or indices_bottom:
        return {0: indices_top, -1: indices_bottom}
      else:
        return None
function_tokens: def _show_array_indices ( self ) : indices_top = self . _show_array_index_at_line ( 0 ) output_top = self . _output_top_row if self . _main_menu_pad : output_top += 1 bottom_line_index = ( self . _output_pad_screen_location . bottom - output_top - 1 ) indices_bottom = self . _show_array_index_at_line ( bottom_line_index ) if indices_top or indices_bottom : return { 0 : indices_top , - 1 : indices_bottom } else : return None