code: def page_posts(self, page_id, after='', post_type="posts",
                     include_hidden=False, fields=None, **params):
  
          
          if fields:
              fields = ",".join(fields)
  
          parameters = {"access_token": self.key,
                        "after": after,
                        "fields": fields,
                        "include_hidden": include_hidden}
          parameters = self.merge_params(parameters, params)
  
          return self.api_call('%s/%s' % (page_id, post_type), parameters)
docs: :param page_id:
          :param after:
          :param post_type: Can be 'posts', 'feed', 'tagged', 'promotable_posts'
          :param include_hidden:
          :param fields:
          :param params:
          :return: