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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 _set_default_serializer(self, name):
 """ Set the default serialization method used by this library. :param name: The name of the registered serialization method. For example, ``json`` (default), ``pickle``, ``yaml``, or any custom methods registered using :meth:`register`. :raises SerializerNotInstalled: If the serialization method requested is not available. """

        try:
            (self._default_content_type, self._default_content_encoding,
             self._default_encode) = self._encoders[name]
        except KeyError:
            raise SerializerNotInstalled(
                "No encoder installed for %s" % name)