title: .Error in importing keras.optimizers.schedules
body: <hr>
  
  <p>ImportError                               Traceback (most recent call last)
   in 
  ----> 1 from keras.optimizers import schedules</p>
  
  <p>ImportError: cannot import name 'schedules' from 'keras.optimizers' (C:\Users\hp\Roaming\anaconda3-64bit\lib\site-packages\keras\optimizers.py)
  I have tensorflow version 1.13.1 and keras version 2.3.1 and conda version 4.6.14. I can import keras.optimizers. I can import every function in it except schedules. Even from keras.optimizers import * works.</p>