smart_silences {
  unique_name: "test_silence_rule"
  justification: "placeholder silence rule"
  expiration_time {
    seconds: 1704067200
  }
  large_model_name_regexp_filter: "non-existent-model"
  location_regexp_filter: "non-existent-location"
  response_code_regexp_filter: "000"
  error_message_regexp_filter: "non-existent-error"
  cloud_project_number_filter: 0
}