code: def get_application(self, prefix):
      with self.lock:
          app = self.instances.get(prefix)
          if app is None:
              app = self.create_app(prefix)
              if app is not None:
                  self.instances[prefix] = app
          return app
  
file_path: dtale/dtale/django/dispatcher.py
imports: import sys
  from threading import Lock
  from werkzeug.wsgi import get_path_info
label_desc: Use image node_id 2 for calling the PathDispatcher obj's underlying member method code with example usage: obj.get_application(prefix) and returns: app