docstr: Returns `None` if the tag isn't in the report.
docstr_tok: ["Returns","`","None","`","if","the","tag","is","n't","in","the","report","."]
code: def get_value_from_report(self, report: Dict) -> Optional[str]:
      """Returns `None` if the tag isn't in the report."""
      if "extra_usage_tags" not in report:
          return None
  
      return report["extra_usage_tags"].get(
          TagKey.Name(self.value).lower(), None
      )
  
imports: from enum import Enum
  from typing import Dict, Optional
  from ray._private.usage.usage_lib import TagKey, record_extra_usage_tag
label_desc: Use image node_id 2 for calling the ServeUsageTag obj's underlying member method code with example usage: obj.get_value_from_report(report) and returns: report, None