Synced block
https://developers.notion.com/reference/block#synced-block
Original
Similar to the Notion UI, there are two versions of a synced_block object: the original block that was created first and doesn't yet sync with anything else, and the duplicate block or blocks synced to the original.
Duplicated
Similar to the Notion UI, there are two versions of a synced_block object: the original block that was created first and doesn't yet sync with anything else, and the duplicate block or blocks synced to the original.