code: def test_agent_should_generate_game_input_mappings_with_mixed_spaces(
      self,
  ):
      assert (
          self.agent_game_inputs_complex_mixed.game_inputs_mappings
          == [{0: "A", 1: "B"}, None, {0: "C", 1: "D", 2: "E"}]
      )
  
file_path: SerpentAI/tests/unit/test_agent.py
imports: import pytest
  from serpent.machine_learning.reinforcement_learning.agent import Agent
  from serpent.input_controller import KeyboardKey, KeyboardEvent, KeyboardEvents
  from serpent.enums import InputControlTypes
  from serpent.utilities import SerpentError
label_desc: Use image node_id 6 for calling the TestAgent obj's underlying member method code with example usage: obj.test_agent_should_generate_game_input_mappings_with_mixed_spaces() without return types