chore(docs): Include StringValue in docs (#1140)

Author: lorensr

packages/common/src/index.ts

@@ -19,7 +19,7 @@ export * from './failure';
 export { Headers, Next } from './interceptors';
 export * from './interfaces';
 export * from './retry-policy';
-export { type Timestamp, Duration } from './time';
+export { type Timestamp, Duration, StringValue } from './time';
 export * from './workflow-handle';
 export * from './workflow-options';
 

packages/common/src/time.ts

@@ -16,6 +16,8 @@ export type Timestamp = google.protobuf.ITimestamp;
  */
 export type Duration = StringValue | number;
 
+export type { StringValue } from 'ms';
+
 /**
  * Lossy conversion function from Timestamp to number due to possible overflow.
  * If ts is null or undefined returns undefined.