code: def test_was_selected_implicitly_selects_errors():
      """Verify we detect users implicitly selecting an error."""
      error_code = "E121"
      decider = style_guide.DecisionEngine(
          create_options(
              select=None,
              extended_default_select=["E"],
          ),
      )
  
      assert (
          decider.was_selected(error_code)
          is style_guide.Selected.Implicitly
      )
  
file_path: flake8/tests/unit/test_decision_engine.py
imports: from __future__ import annotations
  import argparse
  import pytest
  from flake8 import style_guide
label_desc: Use image node_id 5 for calling a global function with example usage: test_was_selected_implicitly_selects_errors() without return types