def list(self, link_type, product, identifierType=None):
        """
        Retrieve list of linked products

        :param link_type: type of link, one of 'cross_sell', 'up_sell',
                'related' or 'grouped'
        :param product: ID or SKU of product
        :param identifierType: Defines whether the product or SKU value is
                               passed in the "product" parameter.

        :return: `list` of `dict`
        """
        return self.call('catalog_product_link.list',
                         [link_type, product, identifierType])