code: def list_many_cards(
      ctx,
      type=None,
      hash=None,
      card_id=None,
      follow_resumed=None,
      as_json=None,
      file=None,
  ):
      from metaflow import Flow
  
      flow = Flow(ctx.obj.flow.name)
      run = flow.latest_run
      cards_found = 0
      if not as_json:
          pass
          ctx.obj.echo(
              "Listing cards for run %s" % run.pathspec, fg="green"
          )
      js_list = []
      for step in run:
          step_str_printed = (
              False  # variable to control printing stepname once.
          )
          for task in step:
              try:
                  (
                      available_card_paths,
                      card_datastore,
                      pathspec,
                  ) = resolve_card(
                      ctx,
                      "/".join(task.pathspec.split("/")[1:]),
                      type=type,
                      hash=hash,
                      card_id=card_id,
                      follow_resumed=follow_resumed,
                      no_echo=True,
                  )
                  if not step_str_printed and not as_json:
                      ctx.obj.echo("Step : %s" % step.id, fg="green")
                      step_str_printed = True
  
                  js_resp = list_available_cards(
                      ctx,
                      pathspec,
                      available_card_paths,
                      card_datastore,
                      command=None,
                      show_list_as_json=as_json,
                      list_many=True,
                      file=file,
                  )
                  if as_json:
                      js_list.append(js_resp)
                  cards_found += 1
              except CardNotPresentException:
                  pass
      if cards_found == 0:
          raise CardNotPresentException(
              run.pathspec,
              card_hash=hash,
              card_type=type,
              card_id=card_id,
          )
      if as_json:
          if file:
              with open(file, "w") as f:
                  json.dump(js_list, f)
          else:
              ctx.obj.echo_always(
                  json.dumps(js_list, indent=4), err=False
              )
  
imports: from metaflow.client import Task
  from metaflow import JSONType, namespace
  from metaflow.util import resolve_identity
  from metaflow.exception import CommandException, MetaflowNotFound, MetaflowNamespaceMismatch
  import webbrowser
  import re
  from metaflow._vendor import click
  import os
  import json
  import uuid
  import signal
  import random
  from contextlib import contextmanager
  from functools import wraps
  from metaflow.exception import MetaflowNamespaceMismatch
  from .card_datastore import CardDatastore, NUM_SHORT_HASH_CHARS
  from .exception import CardClassFoundException, IncorrectCardArgsException, UnrenderableCardException, CardNotPresentException, TaskNotFoundException
  import traceback
  from collections import namedtuple
  from .card_resolver import resolve_paths_from_task, resumed_info
label_desc: Use image node_id 8 for calling a global function with example usage: list_many_cards(ctx, type, hash, card_id, follow_resumed, as_json, file) without return types