interface Optionsimport { type Options } from "https://deno.land/x/lume@v2.4.1/plugins/relations.ts"; Propertiesoptionalextensions: string[]The list of extensions this plugin applies to optionalidKey: stringThe field name used to save the page id optionaltypeKey: stringThe field name used to save the page type foreignKeys: Record<string, string | ForeignKeyOptions>The foreign keys per type (type => foreign_key)