code: def setup(self, mode, size):
      rng = np.random.default_rng(1234)
      self.a = rng.standard_normal(size[0])
      self.b = rng.standard_normal(size[1])
  
imports: from itertools import product
  import numpy
  from .common import Benchmark, safe_import
label_desc: Use image node_id 1 for calling the OAConvolve obj's underlying member method code with example usage: obj.setup(mode, size) without return types