code: def test_periodic_axis1(self, xp, scp):
      x, y = self.get_xy(xp)
      b = scp.interpolate.make_interp_spline(
          x, y, k=5, bc_type="periodic", axis=-1
      )
      for i in range(1, 5):
          xp.testing.assert_allclose(
              b(x[0], nu=i), b(x[-1], nu=i), atol=1e-11
          )
      return b(x)
  
imports: import pytest
  import cupy
  from cupy import testing
  from cupy.cuda import runtime
  import numpy
  import cupyx.scipy.interpolate
label_desc: Use image node_id 3 for calling the TestInterpPeriodic obj's underlying member method code with example usage: obj.test_periodic_axis1(xp, scp) and returns: b