code: def f1(p, t):
      """Compute the function p * sin(t) * (t - 1)."""
      return p * np.sin(t) * (t - 1)
  
imports: import pytest
  import pennylane
  from pennylane import numpy
  from pennylane.pulse import ParametrizedHamiltonian
  from pennylane.wires import Wires
label_desc: Use image node_id 1 for calling a global function with example usage: f1(p, t) and returns: unknown