docs: def handle_token(cls, parser, token):
          """Class method to parse get_comment_list/count/form and return a Node."""
          tokens = token.contents.split()
          if tokens[1] != 'for':
              raise template.TemplateSyntaxError(
                  "Second argument in %r tag must be 'for'" % tokens[0]
              )
  
          # {% get_whatever for obj as varname %}
          if len(tokens) == 5:
              if tokens[3] != 'as':
                  raise template.TemplateSyntaxError("Third argument in %r must be 'as'" % tokens[0])
              return cls(
                  object_expr=parser.compile_filter(tokens[2]),
                  as_varname=tokens[4],
              )
  
          # {% get_whatever for app.model pk as varname %}
          elif len(tokens) == 6:
              if tokens[4] != 'as':
                  raise template.TemplateSyntaxError("Fourth argument in %r must be 'as'" % tokens[0])
              return cls(
                  ctype = BaseCommentNode.lookup_content_type(tokens[2], tokens[0]),
                  object_pk_expr = parser.compile_filter(tokens[3]),
                  as_varname = tokens[5]
              )
  
          else:
              raise template.TemplateSyntaxError("%r tag requires 4 or 5 arguments" % tokens[0])