new_contents: from ndtable import RecordDecl
  from ndtable import float32, int32
  from numpy import dtype
  
  class Simple(RecordDecl):
      foo = int32
      bar = float32
  
      __dummy = True
  
  def test_to_numpy():
      converted = Simple.to_numpy()
      assert converted == dtype([('foo', '<i4'), ('bar', '<f4')])
  
subject: Test for record dshape <-> dtype conversions.