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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 blob(self, nodeid, tag, start=0, end=0xFFFFFFFF):

 """
 Blobs are stored in sequential nodes
 with increasing index values.
 
 most blobs, like scripts start at index
 0, long names start at a specified
 offset.
 
 """

        startkey = self.makekey(nodeid, tag, start)
        endkey = self.makekey(nodeid, tag, end)
        cur = self.btree.find('ge', startkey)
        data = b''
        while cur.getkey() <= endkey:
            data += cur.getval()
            cur.next()
        return data