code: def resolve_task_from_pathspec(flow_name, pathspec):
      """
      resolves a task object for the pathspec query on the CLI.
      Args:
          flow_name : (str) : name of flow
          pathspec (str) : can be `stepname` / `runid/stepname` / `runid/stepname/taskid`
  
      Returns:
          metaflow.Task | None
      """
      from metaflow import Flow, Step, Task
      from metaflow.exception import MetaflowNotFound
  
      # since pathspec can have many variations.
      pthsplits = pathspec.split("/")
      task = None
      run_id = None
      resolving_from = "task_pathspec"
      if len(pthsplits) == 1:
          # This means stepname
          resolving_from = "stepname"
          latest_run = Flow(flow_name).latest_run
          if latest_run is not None:
              run_id = latest_run.pathspec
              try:
                  task = latest_run[pathspec].task
              except KeyError:
                  pass
      elif len(pthsplits) == 2:
          # This means runid/stepname
          namespace(None)
          resolving_from = "step_pathspec"
          try:
              task = Step("/".join([flow_name, pathspec])).task
          except MetaflowNotFound:
              pass
      elif len(pthsplits) == 3:
          # this means runid/stepname/taskid
          namespace(None)
          resolving_from = "task_pathspec"
          try:
              task = Task("/".join([flow_name, pathspec]))
          except MetaflowNotFound:
              pass
      else:
          # raise exception for invalid pathspec format
          raise CommandException(
              msg="The PATHSPEC argument should be of the form 'stepname' Or '<runid>/<stepname>' Or '<runid>/<stepname>/<taskid>'"
          )
  
      if task is None:
          # raise Exception that task could not be resolved for the query.
          raise TaskNotFoundException(
              pathspec, resolving_from, run_id=run_id
          )
  
      return task
  
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 2 for calling a global function with example usage: resolve_task_from_pathspec(flow_name, pathspec) and returns: task