old_contents: from srttools import Scan, ScanSet, CalibratorTable
  from astropy.table import Table
  
  
  def test_import_scan():
      s = Scan()
      assert isinstance(s, Table)
  
  
  def test_import_scanset():
      s = ScanSet()
      assert isinstance(s, Table)
  
  
  def test_import_calibratortable():
      s = CalibratorTable()
      assert isinstance(s, Table)
  
new_contents: from astropy.table import Table
  
  
  def test_import_scan():
      from srttools import Scan
      s = Scan()
      assert isinstance(s, Table)
  
  
  def test_import_scanset():
      from srttools import ScanSet
      s = ScanSet()
      assert isinstance(s, Table)
  
  
  def test_import_calibratortable():
      from srttools import CalibratorTable
      s = CalibratorTable()
      assert isinstance(s, Table)
  
subject: Split imports