"@context":
  "@vocab": https://schema.org/
  gcloud: https://cloud.google.com/trace/docs/reference/v2/rest/
  name: schema:name
  description: schema:description
  url: schema:url
  Span:
    "@id": gcloud:projects.traces.spans
    "@type": schema:Action
    spanId: schema:identifier
    parentSpanId: schema:isPartOf
    displayName: schema:name
    startTime: schema:startTime
    endTime: schema:endTime
    attributes: schema:additionalProperty
    status: schema:actionStatus
    childSpanCount: schema:numberOfItems
  Trace:
    "@id": gcloud:projects.traces
    "@type": schema:Dataset
    projectId: schema:identifier
    traceId: schema:identifier
    spans: schema:hasPart