How can i create single type collection?

System Information
  • Strapi Version: 3.6.2
  • Operating System:
  • Database:
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Hi guys, At the moment when i wanna add new page, i will create single type for new page. But i wonder how can i create page collection ? I wanna get all page - all data inside one request API. It’s will be return all of pages.

Thanks a lot!