old_contents: from databox import DataBox
  from container_overlay import ContainerOverlay
  from aligned_container_overlay import AlignedContainerOverlay
  from text_grid_overlay import TextGridOverlay
  from simple_inspector_overlay import SimpleInspectorOverlay
  
new_contents: from databox import DataBox
  from container_overlay import ContainerOverlay
  from aligned_container_overlay import AlignedContainerOverlay
  from text_grid_overlay import TextGridOverlay
  from simple_inspector_overlay import SimpleInspectorOverlay, basic_formatter, \
      datetime_formatter, date_formatter, time_formatter
  
subject: Add inspector formatters to overlays.api