Separate your content into a multi-page experience.
This block is available in the latest version of WordPress and does not require the Gutenberg plugin.
Block Grammar & Markup
<!-- wp:core/nextpage --> <!--nextpage--> <!-- /wp:core/nextpage -->
Optional. Type: Array.
Blocks are able to be inserted into blocks that use InnerBlocks as nested content. Setting parent lets a block require that it is only available when nested within the specified blocks.
[ "core/post-content" ]
Optional. Type: Object.
Attributes provide the structured data needs of a block. They can exist in different forms when they are serialized, but they are declared together under a common interface.