class_docstr: Helper class for parsing modifier configurations.
  
  The provided `loaded_modifiers` dictionary is updated inplace.
code: def _process_modifier_deps(self, modifier_info):
      for prereq_type in ["prerequisites", "optional_prerequisites"]:
          prereqs = []
          for dep_info in modifier_info.get(prereq_type, []):
              if not isinstance(dep_info, dict):
                  prereqs.append(dep_info)
                  continue
              prereq_key = _convert_dep_info_to_data_query(dep_info)
              prereqs.append(prereq_key)
          modifier_info[prereq_type] = prereqs
  
imports: from __future__ import annotations
  import logging
  import os
  import warnings
  from functools import lru_cache, update_wrapper
  from typing import Callable, Iterable
  import yaml
  from yaml import UnsafeLoader
  import satpy
  from satpy import DataID, DataQuery
  from satpy._config import config_search_paths, get_entry_points_config_dirs, glob_config
  from satpy.dataset.dataid import minimal_default_keys_config
  from satpy.utils import recursive_dict_update
label_desc: Use image node_id 3 for calling the _ModifierConfigHelper obj's underlying member method code with example usage: obj._process_modifier_deps(modifier_info) without return types