code: def test_fetcher(self):
      from nylon.fetcher import workflows
  
      basic_loaded = workflows("basic")
      ensemble_loaded = workflows("ensembles")
  
      self.assertTrue(
          isinstance(basic_loaded, dict)
          and isinstance(basic_loaded, dict)
      )
  
file_path: nylon/tests/tests.py
imports: import os, sys
  from nylon.query import Polymer
  import unittest
label_desc: Use image node_id 10 for calling the TestQueries obj's underlying member method code with example usage: obj.test_fetcher() without return types