message: chore(internals): export symbol for accessing internals closes
diff: @@ -19,6 +19,7 @@ export {
  export { default as SmoothStepEdge, getSmoothStepPath } from './components/Edges/SmoothStepEdge';
  export * from './additional-components';
  +export { internalsSymbol } from './utils';
  export {
  isNode,
  isEdge,
  