message: import-type Change from slate
diff: @@ -22,6 +22,7 @@ import type SyntheticKeyboardEvent from 'react/lib/SyntheticKeyboardEvent';
  import { Editor } from 'slate-react';
  import { getEventTransfer } from 'slate-react';
  import { Value, Document, Event, Block, Inline, Text, Range, Node } from 'slate';
  +import type { Change } from 'slate';
  import Html from 'slate-html-serializer';
  import Md from 'slate-md-serializer';
  