old_contents: ###############################################################################
  # Caleydo - Visualization for Molecular Biology - http://caleydo.org
  # Copyright (c) The Caleydo Team. All rights reserved.
  # Licensed under the new BSD license, available at http://caleydo.org/license
  ###############################################################################
  
  from flask import Flask as Namespace, request, abort, make_response, Response, send_from_directory, safe_join, jsonify, render_template_string  # noqa
  
new_contents: ###############################################################################
  # Caleydo - Visualization for Molecular Biology - http://caleydo.org
  # Copyright (c) The Caleydo Team. All rights reserved.
  # Licensed under the new BSD license, available at http://caleydo.org/license
  ###############################################################################
  
  from flask import Flask as Namespace, request, abort, make_response, Response, send_from_directory, safe_join, jsonify, render_template_string, send_file  # noqa
  
subject: fix missing reexport send_file