code: def evaluate_dir(sample_dir):
      
      results = []
      if sample_dir[-1] == "/":
          sample_dir = sample_dir[:-1]
      for filename in glob.glob("%s/*.inkml" % sample_dir):
          results.append(evaluate_inkml(filename))
      return results
docs: Evaluate all recordings in `sample_dir`.
  
      Parameters
      ----------
      sample_dir : string
          The path to a directory with *.inkml files.
  
      Returns
      -------
      list of dictionaries
          Each dictionary contains the keys 'filename' and 'results', where
          'results' itself is a list of dictionaries. Each of the results has
          the keys 'latex' and 'probability'