class_docstr: Most tests done in the base class LinearOperatorDerivedClassTest.
code: def test_is_square_set_for_aat_form(self):
      mat_ph = array_ops.placeholder(
          dtypes.float64
      )  # No shape set at all.
      x = linalg.LinearOperatorFullMatrix(mat_ph, is_square=False)
  
      operator = linalg.LinearOperatorComposition([x, x.H])
      self.assertTrue(operator.is_square)
  
imports: import numpy
  from tensorflow.python.framework import config
  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 math_ops
  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 8 for calling the NonSquareLinearOperatorCompositionTest obj's underlying member method code with example usage: obj.test_is_square_set_for_aat_form() without return types