code: def test_list_interface_count():
      l = DogmaticList([1, 2, 4, 4, 5])
      assert l.count(1) == 1
      assert l.count(3) == 0
      assert l.count(4) == 2
  
imports: import pytest
  from sacred.config.custom_containers import DogmaticDict, DogmaticList
label_desc: Use image node_id 17 for calling a global function with example usage: test_list_interface_count() without return types