code: def _recommend_plugin_dir(plugin_name, src_dir=None):
      plugins_dir = fo.config.plugins_dir
      if os.path.isdir(plugins_dir):
          existing_dirs = etau.list_subdirs(plugins_dir, recursive=True)
      else:
          existing_dirs = set()
  
      # Use `src_dir` if provided
      if src_dir is not None:
          dirname = os.path.basename(src_dir)
          if dirname not in existing_dirs:
              return os.path.join(plugins_dir, dirname)
  
      # Else use directory-ified plugin name
      name = os.path.join(
          *plugin_name.split("/")
      )  # Windows compatibility
      if name not in existing_dirs:
          return os.path.join(plugins_dir, name)
  
      # Else generate a unique name based on the plugin name
      unique_name = None
      i = 2
      while True:
          unique_name = name + str(i)
          if unique_name in existing_dirs:
              i += 1
          else:
              break
  
      return os.path.join(plugins_dir, unique_name)
  
imports: from collections import Counter
  from dataclasses import dataclass
  import json
  import logging
  import os
  from packaging.requirements import Requirement
  import re
  import shutil
  import yaml
  import eta.core.utils
  import eta.core.web
  import fiftyone
  import fiftyone.constants
  from fiftyone.core.config import locate_app_config
  import fiftyone.core.utils
  from fiftyone.plugins.definitions import PluginDefinition
  from fiftyone.utils.github import GitHubRepository
label_desc: Use image node_id 27 for calling a global function with example usage: _recommend_plugin_dir(plugin_name, src_dir) and returns: os, os, os