docstr: Test that it can be called with no other values.
docstr_tok: ["Test","that","it","can","be","called","with","no","other","values","."]
code: def test_just_label(self):
      """Test that it can be called with no other values."""
      st.camera_input("the label")
  
      c = self.get_delta_from_queue().new_element.camera_input
      self.assertEqual(c.label, "the label")
      self.assertEqual(
          c.label_visibility.value,
          LabelVisibilityMessage.LabelVisibilityOptions.VISIBLE,
      )
  
file_path: streamlit/lib/tests/streamlit/elements/camera_input_test.py
imports: from parameterized import parameterized
  import streamlit
  from streamlit.errors import StreamlitAPIException
  from streamlit.proto.LabelVisibilityMessage_pb2 import LabelVisibilityMessage
  from tests.delta_generator_test_case import DeltaGeneratorTestCase
label_desc: Use image node_id 1 for calling the CameraInputTest obj's underlying member method code with example usage: obj.test_just_label() without return types