Keras: Starting, stopping, and resuming training

https://www.pyimagesearch.com/2019/09/23/keras-starting-stopping-and-resuming-training/?fbclid=IwAR0EBeJSSYME10NHBpUvASOnzextLUuLDk3uc2_NUFB2AXoLJ5aU6anIIhA