code: public RemoteUpdateResult updateMany(final Bson filter, final Bson update) {
      return updateMany(filter, update, new RemoteUpdateOptions());
    }
docs: Update all documents in the collection according to the specified arguments.
  
  @param filter a document describing the query filter, which may not be null.
  @param update a document describing the update, which may not be null. The update to apply
  must include only update operators.
  @return the result of the update many operation