code: def mux(select, left, right):
      return [
          np.vectorize(lambda c, x, y: x if c else y)(
              select, left, right
          )
      ]
  
imports: from caffe2.python import core
  import caffe2.python.hypothesis_test_util
  import caffe2.python.serialized_test.serialized_test_util
  from hypothesis import given, settings
  import hypothesis.strategies
  import numpy
  import unittest
label_desc: Use image node_id 1 for calling a global function with example usage: mux(select, left, right) and returns: list