coremltools doesn't convert from keras to coreml

Hi,

I'm using coremltools 0.6.3, tensorflow 1.3.0, keras 2.0.8 and I keep running into this error:

coremlconverter.py

import coremltools

coreml_model = coremltools.converters.keras.convert('tinyYolov3.h5')

coreml_model.save('tankYOLO.mlmodel')

python ../coremlconverter.py

Using TensorFlow backend.

Traceback (most recent call last):

File "../coremlconverter.py", line 6, in <module> coreml_model = coremltools.converters.keras.convert('tinyYolov3.h5')

AttributeError: 'module' object has no attribute 'convert'

I've tried version 2.0.2, 2.0.4, 2.0.6, 2.0.7 of keras but nothing seems to work. There is very little information out there and I haven't been able to find anything in days of searching. I'm hoping someone here, or folks from Apple will be able to point me in the right direction.

Thank you!