code: def test_quadratic_at_zero(self, xp, scp):
      w = scp.signal.chirp(
          t=0, f0=1.0, f1=2.0, t1=1.0, method="quadratic"
      )
      return w
  
imports: import pytest
  import cupy
  from cupy import testing
  import cupyx.scipy.signal
  import numpy
label_desc: Use image node_id 2 for calling the TestChirp obj's underlying member method code with example usage: obj.test_quadratic_at_zero(xp, scp) and returns: w