def detectEncodingMeta(self):
        """Report the encoding declared by the meta element
        """
        buffer = self.rawStream.read(self.numBytesMeta)
        assert isinstance(buffer, bytes)
        parser = EncodingParser(buffer)
        self.rawStream.seek(0)
        encoding = parser.getEncoding()

        if encoding is not None and encoding.name in ("utf-16be", "utf-16le"):
            encoding = lookupEncoding("utf-8")

        return encoding
Report the encoding declared by the meta element
        
product/gradle-plugin/src/main/python/pip/_vendor/html5lib/_inputstream.py