[Object Detection] TypeError: `name` must be string, given: 0

https://github.com/tensorflow/models/pull/5372/files#diff-76df8ca264a059e8a3003851fe4d7849R653

 research/object_detection/model_lib.py

		def create_train_and_eval_specs(train_input_fn,
			name=exporter_name, serving_input_receiver_fn=predict_input_fn)
			eval_specs.append(
			tf.estimator.EvalSpec(
		-	name=eval_spec_name,
		+	name=str(eval_spec_name),
			input_fn=eval_input_fn,
			steps=None,
			exporters=exporter))

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2  research/object_detection/models/ssd_mobilenet_v1_fpn_feature_extractor.py

			# A modified config of mobilenet v1 that makes it more detection friendly,
			def _create_modified_mobilenet_config():
		-	conv_defs = copy.copy(mobilenet_v1.MOBILENETV1_CONV_DEFS)
		+	conv_defs = copy.copy(mobilenet_v1._CONV_DEFS)
			conv_defs[-2] = mobilenet_v1.DepthSepConv(kernel=[3, 3], stride=2, depth=512)
			conv_defs[-1] = mobilenet_v1.DepthSepConv(kernel=[3, 3], stride=1, depth=256)
			return conv_defs