code: def user_auth(
          self,
          cloudflare_email=None,
          cloudflare_pass=None,
          unique_id=None
              ):
          
          if not (cloudflare_email and cloudflare_pass) and not unique_id:
              raise KeyError(
                  'Either cloudflare_email and cloudflare_pass or unique_id must be present')
          params = {'act': 'user_auth'}
          if cloudflare_email and cloudflare_pass:
              params['cloudflare_email'] = cloudflare_email
              params['cloudflare_pass'] = cloudflare_pass
          if unique_id:
              params['unique_id'] = unique_id
  
          return self._request(params)
docs: Get user_key based on either his email and password or unique_id.
  
          :param    cloudflare_email: email associated with user
          :type     cloudflare_email: str
          :param    cloudflare_pass: pass associated with user
          :type     cloudflare_pass: str
          :param    unique_id:        unique id associated with user
          :type     unique_id:        str
  
          :returns:
          :rtype:   dict