code: def from_file(file):
      return load_test(file)
  
imports: from abc import ABC, abstractmethod
  import dill
  from munch import Munch
  import numpy
  import inspect
  from .expect import iter_with_optional, Expect
  from .viewer.test_summarizer import TestSummarizer
label_desc: Use image node_id 3 for calling the AbstractTest obj's underlying member method code with example usage: obj.from_file(file) and returns: load_test