code: def test_debc024_len():
      assert len(Component()) == 0
      assert len(Component(children="Hello World")) == 1
      assert len(Component(children=Component())) == 1
      assert len(Component(children=[Component(), Component()])) == 2
      assert (
          len(
              Component(
                  children=[
                      Component(children=Component()),
                      Component(),
                  ]
              )
          )
          == 3
      )
  
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 25 for calling a global function with example usage: test_debc024_len() without return types