class_docstr: Tests for integration with higher level components of PennyLane.
docstr: Test that a PassthruQNode default.mixed with JAX works with templates.
code: def test_template_integration(self):
      """Test that a PassthruQNode default.mixed with JAX works with templates."""
      dev = qml.device("default.mixed", wires=2)
  
      @qml.qnode(dev, interface="jax", diff_method="backprop")
      def circuit(weights):
          qml.templates.StronglyEntanglingLayers(weights, wires=[0, 1])
          return qml.expval(qml.PauliZ(0))
  
      shape = qml.templates.StronglyEntanglingLayers.shape(
          n_layers=2, n_wires=2
      )
      weights = jnp.array(np.random.random(shape))
  
      grad = jax.grad(circuit)(weights)
      assert grad.shape == weights.shape
  
imports: from functools import partial
  import pytest
  import numpy
  import pennylane
  from pennylane import numpy
  from pennylane.devices.default_mixed import DefaultMixed
label_desc: Use image node_id 1 for calling the TestHighLevelIntegration obj's underlying member method code with example usage: obj.test_template_integration() and returns: qml