code: def __init__(self, lst, keys, shuffle=False):
      self._lst = lst
      self._keys = keys
      self._shuffle = shuffle
      self._size = len(lst)
  
file_path: tensorpack/examples/FasterRCNN/common.py
imports: import numpy
  import cv2
  from tensorpack.dataflow import RNGDataFlow
  from tensorpack.dataflow.imgaug import ImageAugmentor, ResizeTransform
label_desc: Use image node_id 1 to create a new DataFromListOfDict object from inherited base classes: RNGDataFlow with example: obj = DataFromListOfDict(lst, keys, shuffle)