code: def parametrized_coefficients_example(
      savefile="parametrized_coefficients_example.png",
  ):
      def f1(p, t):
          return jnp.sin(p[0] * t**2) + p[1]
  
      def f2(p, t):
          return p * jnp.cos(t)
  
      H = 2 * qml.PauliX(0) + f1 * qml.PauliY(0) + f2 * qml.PauliZ(0)
  
      times = jnp.linspace(0.0, 5.0, 1000)
      fs = H.coeffs_parametrized
      ops = H.ops_parametrized
      params = [[4.6, 2.3], 1.2]
  
      fig, axs = plt.subplots(nrows=len(ops))
      for n, f in enumerate(fs):
          ax = axs[n]
          ax.plot(times, f(params[n], times), label=f"p={params[n]}")
          ax.set_ylabel(f"f{n}")
          ax.legend(loc="upper left")
  
      ax.set_xlabel("Time")
      axs[0].set_title(f"H parametrized coefficients")
      plt.tight_layout()
  
      plt.savefig(folder / savefile)
      plt.close()
  
imports: import pathlib
  import matplotlib.pyplot
  from jax import numpy
  import pennylane
label_desc: Use image node_id 1 for calling a global function with example usage: parametrized_coefficients_example(savefile) and returns: unknown, unknown