code: def test_settings_docs_example():
      settings = Settings()
      settings.time_axis = "date"
      assert settings.time_axis == "date"
  
      settings = Settings(time_axis="date")
      assert settings.time_axis == "date"
  
imports: import pytest
  from pydantic.error_wrappers import ValidationError
  from popmon import Settings
label_desc: Use image node_id 1 for calling a global function with example usage: test_settings_docs_example() without return types