code: def test_error_on_invalid_formats(self):
      BAD_FORMATS = [
          "blah",
          "a%f",
          "a%.3f",
          "%d%d",
      ]
      for fmt in BAD_FORMATS:
          with pytest.raises(StreamlitAPIException) as exc_message:
              st.number_input("any label", value=3.14, format=fmt)
  
imports: from unittest.mock import MagicMock, patch
  import pytest
  from parameterized import parameterized
  import streamlit
  from streamlit.errors import StreamlitAPIException
  from streamlit.js_number import JSNumber
  from streamlit.proto.Alert_pb2 import Alert
  from streamlit.proto.LabelVisibilityMessage_pb2 import LabelVisibilityMessage
  from streamlit.proto.NumberInput_pb2 import NumberInput
  from streamlit.proto.WidgetStates_pb2 import WidgetState
  from streamlit.testing.v1.app_test import AppTest
  from tests.delta_generator_test_case import DeltaGeneratorTestCase
label_desc: Use image node_id 20 for calling the NumberInputTest obj's underlying member method code with example usage: obj.test_error_on_invalid_formats() without return types