code: def search(self, query, **kwargs):
          
  
          content = kwargs
          content['query'] = {'_content': query}
  
          return self.request('Search', content)
docs: Search object in account
  
          :returns: a dic where value c contains the list of results (if there
          is any). Example : {
              'more': '0',
              'offset': '0',
              'sortBy': 'dateDesc',
              'c': [
                  {
                      'id': '-261',
                      'm': {'id': '261',
                            's': '2556',
                            'l': '2'},
                      'u': '0', 'd': '1450714720000',
                      'sf': '1450714720000',
                      'e': {'t': 'f',
                            'd': 'kokopu',
                            'a': 'kokopu@zimbratest3.example.com'},
                      'n': '1',
                      'fr': {'_content': 'Hello there !'},
                      'su': {'_content': 'The subject is cool'}
                  }
              ]