code: def get_vocabulary(self, language_abbr=None):
          
          if not self.password:
              raise Exception("You must provide a password for this function")
          if language_abbr and not self._is_current_language(language_abbr):
              self._switch_language(language_abbr)
  
          overview_url = "https://www.duolingo.com/vocabulary/overview"
          overview_request = self._make_req(overview_url)
          overview = overview_request.json()
  
          return overview
docs: Get overview of user's vocabulary in a language.