code: def register(self, key, fn, progress):
      self.func_registry[key] = self.make_job_fn(fn, progress, key)
  
file_path: dash/dash/long_callback/managers/__init__.py
imports: from abc import ABC
  import inspect
  import hashlib
label_desc: Use image node_id 11 for calling the BaseLongCallbackManager obj's underlying member method code with example usage: obj.register(key, fn, progress) without return types