code: def metrics(self):
      # Make this eager instead of lazy? See https://github.com/replicate/keepsake/issues/337
      return CheckpointListMetrics(self)
  
imports: import datetime
  import os
  import io
  import tempfile
  import json
  import sys
  import html
  from typing import Optional, Dict, Any, List, BinaryIO, TYPE_CHECKING, MutableSequence
  from .None import console
  from .json import CustomJSONEncoder
  from .metadata import rfc3339_datetime, parse_rfc3339
  from .validate import check_path
label_desc: Use image node_id 3 for calling the CheckpointList obj's underlying member method code with example usage: obj.metrics() and returns: CheckpointListMetrics