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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 search(self, search_content, search_type, limit=9):
 """Search entrance. :params search_content: search content. :params search_type: search type. :params limit: result count returned by weapi. :return: a dict. """


        url = 'http://music.163.com/weapi/cloudsearch/get/web?csrf_token='
        params = {'s': search_content, 'type': search_type, 'offset': 0,
                  'sub': 'false', 'limit': limit}
        result = self.post_request(url, params)
        return result