docstr: Test that a ControlledSequence returns False for has_matrix, even if the base returns True
docstr_tok: ["Test","that","a","ControlledSequence","returns","False","for","has_matrix",",","even","if","the","base","returns","True"]
code: def test_has_matrix(self):
      """Test that a ControlledSequence returns False for has_matrix, even if the base returns True"""
      op = qml.ControlledSequence(qml.PauliX(0), control=[1])
      assert op.has_matrix is False
      assert op.base.has_matrix is True
  
imports: import pytest
  import numpy
  from pennylane import numpy
  import pennylane
  from pennylane.wires import Wires
label_desc: Use image node_id 4 for calling the TestProperties obj's underlying member method code with example usage: obj.test_has_matrix() without return types