async def get_request_token(self, loop=None, **params):
        """Get a request_token and request_token_secret from OAuth1 provider."""
        params = dict(self.params, **params)
        data = await self.request('GET', self.request_token_url, params=params, loop=loop)

        self.oauth_token = data.get('oauth_token')
        self.oauth_token_secret = data.get('oauth_token_secret')
        return self.oauth_token, self.oauth_token_secret, data
Get a request_token and request_token_secret from OAuth1 provider.