code: def test_color_picker():
      def script():
          import streamlit as st
  
          st.color_picker("what is your favorite color?")
          st.color_picker("short hex", value="#ABC")
          st.color_picker("invalid", value="blue")
  
      at = AppTest.from_function(script).run()
      assert at.color_picker.len == 2
      assert at.color_picker.values == ["#000000", "#ABC"]
      assert "blue" in at.exception[0].value
  
      at.color_picker[0].pick("#123456").run()
      assert at.color_picker[0].value == "#123456"
  
      repr(at.color_picker[0])
  
imports: from datetime import date, datetime, time
  import numpy
  import pandas
  import pytest
  from streamlit.elements.markdown import MARKDOWN_HORIZONTAL_RULE_EXPRESSION
  from streamlit.testing.v1.app_test import AppTest
label_desc: Use image node_id 5 for calling a global function with example usage: test_color_picker() without return types