def set_prototype(self,this_one):
        if this_one == None:
            self.prototype = None
        else:
            if this_one in self.all_elements:
                self.prototype = this_one
            else:
                raise TypeError("[Error in Cluster::set_prototype] the prototype is not in the elements list.")
Exchanges the request token for an access token.
dataset/ETHPy150Open victor-gil-sepulveda/pyProCT/pyproct/clustering/cluster.py/Cluster.set_prototype--crossover with--dataset/ETHPy150Open onitu/onitu/drivers/flickr/onitu_flickr/flickrapi/auth.py/OAuthFlickrInterface.get_access_token