code: def test_rgamma_zeros(self):
      x = np.array([0, -10, -100, -1000, -10000])
      assert np.all(sc.rgamma(x) == 0)
  
imports: import numpy
  import scipy.special
label_desc: Use image node_id 2 for calling the TestRgamma obj's underlying member method code with example usage: obj.test_rgamma_zeros() without return types