class_docstr: Base Evaluation class.
docstr: Provide jobs for ParallelEvaluation manager
docstr_tok: ["Provide","jobs","for","ParallelEvaluation","manager"]
code: def __iter__(self):
      """Provide jobs for ParallelEvaluation manager"""
      yield self
  
imports: from __future__ import division, with_statement
  import warnings
  import numpy
  from ._base_functions import parse_key, set_job, cat, check_scorer, make_learners, make_tansformers, check_instances
  from ..index import FoldIndex
  from ..parallel import ParallelEvaluation
  from ..parallel.base import BaseBackend, IndexMixin
  from ..metrics import Data, assemble_data
  from ..utils.formatting import _flatten, _check_instances
  from ..utils import print_time, safe_print, assert_correct_format
  from ..externals.joblib import delayed
  from ..externals.sklearn.base import clone
label_desc: Use image node_id 2 for calling the BaseEval obj's underlying member method code with example usage: obj.__iter__() without return types