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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 __read_byte_size(decl, attrs):
 """Using duck typing to set the size instead of in constructor"""

        size = attrs.get(XML_AN_SIZE, 0)
        # Make sure the size is in bytes instead of bits
        decl.byte_size = int(size) / 8