code: def _try_read_gpg(path):
      path = os.path.expanduser(path)
      cmd = _gpg_cmd() + [path]
      log.debug("gpg cmd: %s", cmd)
      try:
          p = subprocess.Popen(
              cmd,
              env=os.environ,
              stdout=subprocess.PIPE,
              stderr=subprocess.PIPE,
          )
      except OSError as e:
          log.error(
              "cannot decode %s with command '%s' (%s)",
              path,
              " ".join(cmd),
              e,
          )
          return None
      else:
          out, err = p.communicate()
          if p.returncode != 0:
              log.error(err.decode(errors="replace").strip())
              return None
          return out.decode(errors="replace")
  
imports: import logging
  import os
  import subprocess
  import sys
  from guild import config
  from guild import file_util
  from guild import log
  from guild import remote
  from guild import util
  from guild import var
label_desc: Use image node_id 15 for calling a global function with example usage: _try_read_gpg(path) and returns: out, None, None