class_docstr: Runs a user-defined Python function.
class_docstr_tok: ["Runs","a","user-defined","Python","function","."]
code: def function(self) -> Callable[..., ReturnType]:
      return self._partial_function
  
imports: import functools
  import itertools
  from typing import Any, Callable, Generic, TypeVar
  from absl import flags
  from absl import logging
  from launchpad import context
  from launchpad import lazy_loader
  from launchpad.nodes import base
  from launchpad.nodes import dereference
  from launchpad.nodes.python import addressing
  from launchpad.nodes.python import local_multi_processing
  import tree
label_desc: Use image node_id 4 for calling the PyNode obj's underlying member method code with example usage: obj.function() and returns: self