docs: def check_validity_for_dict(keys, dict):
      """
      >>> dict = {'a': 0, 'b': 1, 'c': 2}
      >>> keys = ['a', 'd', 'e']
      >>> check_validity_for_dict(keys, dict) == False
      True
      >>> keys = ['a', 'b', 'c']
      >>> check_validity_for_dict(keys, dict) == False
      False
      """
      for key in keys:
          if key not in dict or dict[key] is '' or dict[key] is None:
              return False
      return True