code: def merge_resources(
      all_resources: List[Dict[str, int]]
  ) -> Tuple[Dict[str, int], Dict[str, List[int]]]:
      """
      Given a list of all resources, return:
        - a merged list of resources
        - a dict mapping conflicting files to ranks that would upload them
  
      """
      files: Set[str] = set()
      uploaders: Dict[str, List] = {}
      merged: Dict[str, int] = {}
      for rank, rscs in enumerate(all_resources):
          for name in rscs:
              size = rscs[name]
              if name.endswith(os.sep):
                  # Dir name.
                  stripped = name.rstrip(os.sep)
                  uploaders.setdefault(stripped, []).append(rank)
              else:
                  # File name.
                  files.add(name)
                  uploaders.setdefault(name, []).append(rank)
  
              merged[name] = size
  
      # Overlapping name situations:
      #
      #  A uploads |  B uploads | Conflict |  Detection
      # -----------|------------|----------|-------------------------------
      #  dir       |  dir       | no       |  n/a
      #  dir       |  file      | yes      |  len(uploaders[name]) > 1
      #  file      |  file      | yes      |  len(uploaders[name]) > 1
      #
      # Conclusion: all conflicts can be detected by checking the names in `files`.
      conflicts = {}
      for name in files:
          uploading_ranks = uploaders[name]
          if len(uploading_ranks) > 1:
              conflicts[name] = uploading_ranks
  
      return merged, conflicts
  
imports: import contextlib
  import datetime
  import enum
  import hashlib
  import json
  import logging
  import os
  import pathlib
  import uuid
  from typing import Any, Callable, Dict, Iterator, List, Optional, Set, Tuple, Union
  from determined import core, tensorboard
  from determined.common import api, storage
  from determined.common.api import bindings
label_desc: Use image node_id 3 for calling a global function with example usage: merge_resources(all_resources) and returns: merged,  conflicts