code: def _gen_anchors(self, config, feature_map_shape):
      model = FasterRCNN(config)
      results = model._generate_anchors(feature_map_shape)
  
      with self.test_session() as sess:
          sess.run(tf.global_variables_initializer())
          results = sess.run(results)
          return results
  
file_path: luminoth/luminoth/models/fasterrcnn/fasterrcnn_test.py
imports: import numpy
  import tensorflow
  from easydict import EasyDict
  from luminoth.models.fasterrcnn import FasterRCNN
  from luminoth.utils.bbox_transform import clip_boxes
label_desc: Use image node_id 3 for calling the FasterRCNNNetworkTest obj's underlying member method code with example usage: obj._gen_anchors(config, feature_map_shape) and returns: results