code: def test_single_bounds(self):
      bounds = (10.0, 20.0)
      self._verify_bounds([bounds], *bounds)
  
imports: import unittest
  import numpy
  from ..bounds import latitude_bounds, longitude_bounds, merge_longitude_bounds, MAX_ALLOWED_LATITUDE, MIN_ALLOWED_LATITUDE, EPSILON
label_desc: Use image node_id 6 for calling the MergeLongitudeBounds obj's underlying member method code with example usage: obj.test_single_bounds() without return types