@atlaskit/editor-core/src/transformers/confluence/collapse-whitespace.ts

A package contains Atlassian editor core functionality

import * as module from 'collapse-whitespace';

declare module 'collapse-whitespace';

export interface ICollapseWhitespace {
  (node: Node, blockTest?: (node: Node) => boolean, preTest?: (node: Node) => boolean): void;
}

const collapseWhitespace: ICollapseWhitespace = module as any;
export default collapseWhitespace;