code: def run_from_parser_json_prepend(cls, parser, cl_args):
      parser.add_argument("--ZZsrc", type=str, action="append")
      parser.add_argument("--ZZoverrides", type=str, nargs="+")
      pre_args, _ = parser.parse_known_args(cl_args)
      if cl_args is None:
          cl_args = sys.argv[1:]
      if pre_args.ZZsrc is not None:
          # Import configs from ZZsrc JSONs
          imported_dict_ls = [
              read_json(path) for path in pre_args.ZZsrc
          ]
          combined_imported_dict = combine_dicts(
              imported_dict_ls, strict=True
          )
  
          # Record which args are going to be overridden
  
          if pre_args.ZZoverrides is not None:
              raw_overrides = pre_args.ZZoverrides
              overrides = [f"--{k}" for k in raw_overrides]
          else:
              raw_overrides = overrides = []
  
          attr_dict = cls.get_attr_dict()
          added_args = []
          for k, v in combined_imported_dict.items():
              formatted_k = f"--{k}"
              # Ensure that args from imported, which are not specified to be overridden,
              #   aren't explicitly specified
              if (
                  formatted_k in cl_args
                  and formatted_k not in overrides
              ):
                  raise RuntimeError(
                      f"Attempting to override {formatted_k}"
                  )
  
              # Special handling for store_true args
              if cls._is_store_true_arg(attr_dict[k]):
                  if v and k not in raw_overrides:
                      added_args.append(formatted_k)
              else:
                  added_args.append(formatted_k)
                  added_args.append(str(v))
          submitted_args = added_args + cl_args
      else:
          assert pre_args.ZZoverrides is None
          submitted_args = cl_args
      update_parser(
          parser=parser,
          class_with_attributes=cls,
      )
      result, _ = read_parser(
          parser=parser,
          class_with_attributes=cls,
          skip_non_class_attributes=["ZZsrc", "ZZoverrides"],
          args=submitted_args,
      )
      assert isinstance(result, cls)
      return result
  
imports: import argparse
  import attr
  import copy
  import inspect
  import json
  import shlex
  import sys
  import pathlib
  from typing import Any, Tuple
  from jiant.utils.python.io import read_json
  from jiant.utils.python.datastructures import combine_dicts
label_desc: Use image node_id 5 for calling the RunConfig obj's underlying member method code with example usage: obj.run_from_parser_json_prepend(cls, parser, cl_args) and returns: result