class_docstr: Test cases for ftrl ops.
docstr: Test that quadratic (here: -2) is the divisor of var.
docstr_tok: ["Test","that","quadratic","(","here",":","-2",")","is","the","divisor","of","var","."]
code: def testQuadratic(self):
      """Test that quadratic (here: -2) is the divisor of var."""
      var, _, _ = self._eval(
          var=np.ones((1, 3, 2)),
          accum=np.ones((1, 3, 2)),
          linear=np.zeros((1, 3, 2)),
          grad=np.ones((1, 3, 2)),
          lr=1,
          l1=1,
          l2=-1.25,
          lr_power=1,
      )
      self.assertAllClose(0.25 * np.ones((1, 3, 2)), var)
  
imports: import numpy
  from tensorflow.compiler.tests import xla_test
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import gen_training_ops
  from tensorflow.python.ops import resource_variable_ops
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 9 for calling the ResourceApplyFtrlTest obj's underlying member method code with example usage: obj.testQuadratic() without return types