docs: async def get_friendly_name(self) -> Text:
          """
          The friendly name is mapped to Facebook's first name. If the first
          name is missing, use the last name.
          """
          u = await self._get_user()
          f = u.get('first_name', '').strip()
          l = u.get('last_name', '').strip()
  
          return f or l