blablablocks-slider-block/build/slide/block.json

{
  "$schema": "https://schemas.wp.org/trunk/block.json",
  "apiVersion": 3,
  "name": "blablablocks/slide",
  "version": "0.1.0",
  "title": "Slide",
  "description": "A single slide within a slider block.",
  "parent": [
    "blablablocks/slider"
  ],
  "supports": {
    "html": false
  },
  "editorScript": "file:./index.js"
}