code: def test_combine_game_inputs_should_handle_valid_combinations(self):
      assert self.game_api.combine_game_inputs([]) == dict()
  
      assert self.game_api.combine_game_inputs(["1"]) == {
          "A": [KeyboardKey.KEY_A],
          "B": [KeyboardKey.KEY_B],
      }
  
      assert self.game_api.combine_game_inputs(["2"]) == {
          "C": [KeyboardKey.KEY_C],
          "D": [KeyboardKey.KEY_D],
      }
  
      assert self.game_api.combine_game_inputs(["3"]) == {
          "E": [KeyboardKey.KEY_E]
      }
  
      assert self.game_api.combine_game_inputs(["1", "2"]) == {
          "A - C": [KeyboardKey.KEY_A, KeyboardKey.KEY_C],
          "A - D": [KeyboardKey.KEY_A, KeyboardKey.KEY_D],
          "B - C": [KeyboardKey.KEY_B, KeyboardKey.KEY_C],
          "B - D": [KeyboardKey.KEY_B, KeyboardKey.KEY_D],
      }
  
      assert self.game_api.combine_game_inputs(["1", "3"]) == {
          "A - E": [KeyboardKey.KEY_A, KeyboardKey.KEY_E],
          "B - E": [KeyboardKey.KEY_B, KeyboardKey.KEY_E],
      }
  
      assert self.game_api.combine_game_inputs(["1", ["2", "3"]]) == {
          "A - C": [KeyboardKey.KEY_A, KeyboardKey.KEY_C],
          "A - D": [KeyboardKey.KEY_A, KeyboardKey.KEY_D],
          "A - E": [KeyboardKey.KEY_A, KeyboardKey.KEY_E],
          "B - C": [KeyboardKey.KEY_B, KeyboardKey.KEY_C],
          "B - D": [KeyboardKey.KEY_B, KeyboardKey.KEY_D],
          "B - E": [KeyboardKey.KEY_B, KeyboardKey.KEY_E],
      }
  
      assert self.game_api.combine_game_inputs(["1", "2", "3"]) == {
          "A - C - E": [
              KeyboardKey.KEY_A,
              KeyboardKey.KEY_C,
              KeyboardKey.KEY_E,
          ],
          "A - D - E": [
              KeyboardKey.KEY_A,
              KeyboardKey.KEY_D,
              KeyboardKey.KEY_E,
          ],
          "B - C - E": [
              KeyboardKey.KEY_B,
              KeyboardKey.KEY_C,
              KeyboardKey.KEY_E,
          ],
          "B - D - E": [
              KeyboardKey.KEY_B,
              KeyboardKey.KEY_D,
              KeyboardKey.KEY_E,
          ],
      }
  
file_path: SerpentAI/tests/unit/test_game_api.py
imports: import pytest
  from serpent.game_api import GameAPI
  from serpent.game import Game
  from serpent.input_controller import KeyboardKey
  from serpent.utilities import SerpentError
label_desc: Use image node_id 5 for calling the TestGameAPI obj's underlying member method code with example usage: obj.test_combine_game_inputs_should_handle_valid_combinations() without return types