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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 _prefix_from_uri(self, uriname):
 """Given a fully qualified XML name, find a prefix e.g. {http://ns.adobe.com/pdf/1.3/}Producer -> pdf:Producer """

        uripart, tag = uriname.split('}', maxsplit=1)
        uri = uripart.replace('{', '')
        return self.REVERSE_NS[uri] + ':' + tag