EOL:Website-this method takes an integer or string/en

This method takes an integer or string which is the unique identifier for a taxon from some provider's database, and a hierarchy_id which represents the provider and returns the EOL page ID for that taxon. For example using the %{link_provider} API, I can find out that the EOL hierarchy_id for the Integrated Taxonomic Information System (ITIS) is %{itis_id}. I can then search EOL for the ITIS Taxonomic Serial Number (TSN) of 180542, Ursus maritimus, by calling %{link_url}