Where to find Optimizers in Tensorflow core Platform 0.5.0?

Special Interest Groups JVM
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#1

Using:

implementation group: 'org.tensorflow', name: 'tensorflow-core-platform', version: '0.5.0'

I want to import

import org.tensorflow.framework.optimizers.Optimizer;

in order to use the various optimizers.

Where can I find it on the most recent version?

#2

Optimizers are in org.tensorflow:tensorflow-framework:0.5.0.