Upgrade to Flow 0.71

server/presenters/document.js

@@ -1,10 +1,12 @@
 // @flow
 import _ from 'lodash';
-import { Op } from 'sequelize';
+import Sequelize from 'sequelize';
 import { User, Document } from '../models';
 import presentUser from './user';
 import presentCollection from './collection';
 
+const Op = Sequelize.Op;
+
 type Options = {
   includeCollaborators?: boolean,
 };
@@ -61,7 +63,10 @@ async function present(ctx: Object, document: Document, options: ?Options) {
     // This could be further optimized by using ctx.cache
     data.collaborators = await User.findAll({
       where: {
-        id: { [Op.in]: _.takeRight(document.collaboratorIds, 10) || [] },
+        id: {
+          // $FlowFixMe
+          [Op.in]: _.takeRight(document.collaboratorIds, 10) || [],
+        },
       },
     }).map(user => presentUser(ctx, user));