in telemetry/vscode/src/generate.ts [241:250]
function generateMetadataProperty(metadata: MetricMetadataType): PropertySignatureStructure {
return {
isReadonly: true,
name: metadata.name,
docs: [metadata.description],
kind: StructureKind.PropertySignature,
type: getArgsFromMetadata(metadata),
hasQuestionToken: !metadata.required,
}
}