code: def test_debc015_set_item_with_children_as_list():
      c1 = Component(id="1")
      c2 = Component(id="2", children=[c1])
      assert c2["1"] == c1
      c3 = Component(id="3")
      c2["1"] = c3
      assert c2["3"] == c3
  
imports: import json
  import plotly
  import pytest
  from dash import __version__, Dash
  from dash import html
  from dash.development.base_component import Component
  from dash import dcc, Input, Output
label_desc: Use image node_id 16 for calling a global function with example usage: test_debc015_set_item_with_children_as_list() without return types