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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 avatar(self, blogname, size=64):
 """ Retrieves the url of the blog's avatar :param blogname: a string, the blog you want the avatar for :returns: A dict created from the JSON response """

        url = "/v2/blog/{}/avatar/{}".format(blogname, size)
        return self.send_api_request("get", url)