new_contents: 
  from textkit.coerce import coerce_types
  
  
  def test_coerce_types():
      content = [
          ["happy", "9"],
          ["day", "8"],
          ["4", "7"],
          ["YOU!", "6"]
      ]
  
      tokens = coerce_types(content)
      assert len(tokens) == 4
      assert tokens[0][0] == "happy"
      assert tokens[0][1] == 9
      assert tokens[2][0] == "4"
  
  
  def test_coerce_types_with_mix_floats_ints():
      content = [
          ["happy", "9"],
          ["day", "8.7"],
          ["4", "7.0"],
          ["YOU!", "6"]
      ]
  
      tokens = coerce_types(content)
      assert len(tokens) == 4
      assert tokens[0][0] == "happy"
      assert tokens[0][1] == 9.0
      assert tokens[1][1] == 8.7
      assert tokens[2][1] == 7
  
subject: add tests for coerce.