class_docstr: Most tests done in the base class LinearOperatorDerivedClassTest.
class_docstr_tok: ["Most","tests","done","in","the","base","class","LinearOperatorDerivedClassTest","."]
docstr: List of optional test names to run.
docstr_tok: ["List","of","optional","test","names","to","run","."]
code: def optional_tests():
      """List of optional test names to run."""
      return [
          "operator_matmul_with_same_type",
      ]
  
imports: import numpy
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.ops.linalg import linalg
  from tensorflow.python.ops.linalg import linear_operator_test_util
  from tensorflow.python.platform import test
label_desc: Use image node_id 3 for calling the LinearOperatorZerosTest obj's underlying member method code with example usage: obj.optional_tests() and returns: list