class_docstr: Plugin which implements the --nf (run new-first) option 
class_docstr_tok: ["Plugin","which","implements","the","--","nf","(","run","new-first",")","option"]
code: def __init__(self, config):
      self.config = config
      self.active = config.option.newfirst
      self.cached_nodeids = config.cache.get("cache/nodeids", [])
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import json
  import os
  from collections import OrderedDict
  import attr
  import py
  import six
  import pytest
  from .compat import _PY2
  from .pathlib import Path
  from .pathlib import resolve_from_str
  from .pathlib import rm_rf
label_desc: Use image node_id 1 to create a new NFPlugin object from inherited base classes: object with example: obj = NFPlugin(config)