def is_goal_attained(character: dict) -> bool:
    """
    Check if goal is attained.

    :param character: a dictionary
    :precondition: character must be a dictionary
    :postcondition: returns True if character has a key Artifact, else returns False
    :return: True if goal is attained, otherwise False

    >>> is_goal_attained({"Artifact": "Necronian Servo-Skull"})
    True
    >>> is_goal_attained({"Max wounds": 1000000000})
    False
    """
    return "Artifact" in character.keys()