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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def create_placeholder_weld_object(data):
 """Helper method that creates a WeldObject that evaluates to itself. Parameters data : numpy.ndarray or WeldObject or str Data to wrap around. If str, it is a placeholder or 'str' literal. Returns ------- WeldObject WeldObject wrapped around data. """

    obj_id, weld_obj = create_weld_object(data)
    weld_obj.weld_code = '{}'.format(str(obj_id))

    return weld_obj