Gets the page's structured data.
The structured data on your page helps search engines understand more about your page and your business so they can display a richer snippet of your pages in search results.
Set the structured data with a list of structured data objects in the JSON-LD format as defined by schema.org.
Note: You should always invoke the wixSeoFrontend.structuredData getter outside of the onReady() event handler to ensure receiving the proper response.