code: def amplitude_and_phase(trig_fn, amp, phase, hz_to_rads=2 * np.pi):
      r"""Wrapper function for combining amplitude and phase into a single callable
      (or constant if neither amplitude nor phase are callable). The factor of :math:`2 \pi` converts
      amplitude in Hz to amplitude in radians/second."""
      if not callable(amp) and not callable(phase):
          return hz_to_rads * amp * trig_fn(phase)
      return AmplitudeAndPhase(
          trig_fn, amp, phase, hz_to_rads=hz_to_rads
      )
  
imports: from dataclasses import dataclass
  from typing import Callable, List, Union
  import numpy
  import pennylane
  from pennylane.wires import Wires
  from pennylane.operation import Operator
  from pennylane.ops.qubit.hamiltonian import Hamiltonian
  from .parametrized_hamiltonian import ParametrizedHamiltonian
label_desc: Use image node_id 3 for calling a global function with example usage: amplitude_and_phase(trig_fn, amp, phase, hz_to_rads) and returns: AmplitudeAndPhase, unknown