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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 calc_padding(fmt, align):
 """Calculate how many padding bytes needed for ``fmt`` to be aligned to ``align``. Args: fmt (str):
 :mod:`struct` format. align (int):
 alignment (2, 4, 8, etc.) Returns: str: padding format (e.g., various number of 'x'). 'x' 'xx' """

    remain = struct.calcsize(fmt) % align
    if remain == 0:
        return ""
    return 'x' * (align - remain)