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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 get(self, id, fields=None, include_fields=True):
 """Retrieve connection by id. Args: id (str):
 Id of the connection to get. fields (list of str, optional):
 A list of fields to include or exclude from the result (depending on include_fields). Empty to retrieve all fields. include_fields (bool, optional):
 True if the fields specified are to be included in the result, False otherwise. See: https://auth0.com/docs/api/management/v2#!/Connections/get_connections_by_id Returns: A connection object. """


        params = {'fields': fields and ','.join(fields) or None,
                  'include_fields': str(include_fields).lower()}

        return self.client.get(self._url(id), params=params)