code: def run(self):
      from dvc.ui import ui
  
      conf = self.config.read("global")
      token = get_in(conf, ["studio", "token"])
      if not token:
          ui.error_write("Not logged in to Studio.")
          return 1
  
      ui.write(token)
      return 0
  
file_path: dvc/dvc/commands/studio.py
imports: import os
  from funcy import get_in
  from dvc.cli import formatter
  from dvc.cli.utils import append_doc_link
  from dvc.commands.config import CmdConfig
  from dvc.log import logger
label_desc: Use image node_id 1 for calling the CmdStudioToken obj's underlying member method code with example usage: obj.run() and returns: int, int