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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 where(cls, **kwargs):
 """ Returns a generator which yields instances matching the given query arguments. For example, this would yield all :py:class:`.Project`:: Project.where() And this would yield all launch approved :py:class:`.Project`:: Project.where(launch_approved=True) """


        _id = kwargs.pop('id', '')
        return cls.paginated_results(*cls.http_get(_id, params=kwargs))