class_docstr: Test optimizers and related classes.
class_docstr_tok: ["Test","optimizers","and","related","classes","."]
docstr: test creating an optimizer with a linear cosine decay to the learning rate
docstr_tok: ["test","creating","an","optimizer","with","a","linear","cosine","decay","to","the","learning","rate"]
code: def test_linearCosine_decay_jax(self):
      """test creating an optimizer with a linear cosine decay to the learning rate"""
      rate = optimizers.LinearCosineDecay(
          initial_rate=0.1, decay_steps=10000
      )
      opt = optimizers.Adam(learning_rate=rate)
      jaxopt = opt._create_jax_optimizer()
      assert isinstance(jaxopt, optax.GradientTransformation)
  
imports: import deepchem
  import deepchem.models.optimizers
  import unittest
  import pytest
label_desc: Use image node_id 26 for calling the TestOptimizers obj's underlying member method code with example usage: obj.test_linearCosine_decay_jax() without return types