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