code: def enabled_for_op(self, _opdef):
      if not self._stats_cmd:
          return False, "nvidia-smi not available"
      return True, "nvdia-smi avaialbe"
  
imports: import csv
  import io
  import subprocess
  import sys
  from guild import util
  from guild.plugins.summary_util import SummaryPlugin
label_desc: Use image node_id 2 for calling the GPUPlugin obj's underlying member method code with example usage: obj.enabled_for_op(_opdef) and returns: True,  str, False,  str