message: Update graphs_creator.py
diff: import unreal_engine as ue
  from unreal_engine.classes import K2Node_InputKey, K2Node_SpawnActorFromClass, Actor, Character, KismetMathLibrary
  +from unreal_engine.structs import Key
  # create a new blueprint
  new_blueprint = ue.create_blueprint(Actor, '/Game/StrangeBlueprint')
  @@ -44,8 +45,7 @@ make_transform = uber_page.graph_add_node_call_function(KismetMathLibrary.MakeTr
  make_transform.node_find_pin('ReturnValue').make_link_to(spawn_actor_node.node_find_pin('SpawnTransform'))
  input_key = K2Node_InputKey()
  -# TODO implement the FKey struct
  -#input_key.InputKey = ???
  +input_key.InputKey = Key(KeyName='SpaceBar')
  input_key_node = uber_page.graph_add_node(input_key, 400, 400)
  # compile the blueprint
  