def METHOD_NAME(feature, name, pos, action1_index):
    """
    Make a simple real action2, referring to only 1 action1 sprite set
    @param feature: Feature of the needed action2
    @type feature: C{int}
    @param name: Name of the action2
    @type name: C{str}
    @param pos: Positional context.
    @type  pos: L{Position}
    @param action1_index: Index of the action1 sprite set to use
    @type action1_index: C{int}
    @return: The created real action2
    @rtype: L{Action2Real}
    """
    return Action2Real(
        feature, name, pos, [action1_index] if feature != 0x04 else [], [action1_index] if feature <= 0x04 else []
    )