code: function BlockTypeSerializer(props) {
      const style = props.node.style || 'normal'
  
      if (/^h\d/.test(style)) {
        return h(style, null, props.children)
      }
  
      return style === 'blockquote'
        ? h('blockquote', null, props.children)
        : h('p', null, props.children)
    }
docs: Renderer of an actual block of type `block`. Confusing, we know.