class_docstr: Always generates the given :class:`adanet.subnetwork.Builder` instances.
  
  Args:
    subnetwork_builders: List of :class:`adanet.subnetwork.Builder` instances to
      return at each iteration when `generate_candidates` is called.
  
  Returns:
    A :class:`adanet.SimpleGenerator` instance.
class_docstr_tok: ["Always","generates","the","given",":","class",":","`","adanet.subnetwork.Builder","`","instances",".","Args",":","subnetwork_builders",":","List","of",":","class",":","`","adanet.subnetwork.Builder","`","instances","to","return","at","each","iteration","when","`","generate_candidates","`","is","called",".","Returns",":","A",":","class",":","`","adanet.SimpleGenerator","`","instance","."]
code: def __init__(self, subnetwork_builders):
      self._subnetwork_builders = subnetwork_builders
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import abc
  import collections
  import six
label_desc: Use image node_id 1 to create a new SimpleGenerator object from inherited base classes: Generator with example: obj = SimpleGenerator(subnetwork_builders)