code: def time_dependent_hamiltonian():
      """Create a time-dependent two-qubit Hamiltonian that takes two scalar parameters."""
      import jax.numpy as jnp
  
      ops = [qml.PauliX(0), qml.PauliZ(1), qml.PauliY(0), qml.PauliX(1)]
  
      def f1(params, t):
          return params * t
  
      def f2(params, t):
          return params * jnp.cos(t)
  
      coeffs = [f1, f2, 4, 9]
      return qml.pulse.ParametrizedHamiltonian(coeffs, ops)
  
imports: from functools import reduce
  import pytest
  import numpy
  from scipy.stats import unitary_group
  import pennylane
  from pennylane.operation import _UNSET_BATCH_SIZE, Operation
  from pennylane.devices.qubit.apply_operation import apply_operation, apply_operation_einsum, apply_operation_tensordot
label_desc: Use image node_id 3 for calling a global function with example usage: time_dependent_hamiltonian() and returns: qml, unknown, unknown