Inline eventarc callback type (#1118)

Author: inlined

src/v2/providers/eventarc.ts

@@ -20,6 +20,11 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 // SOFTWARE.
 
+/**
+ * Cloud functions to integrate directly with Eventarc.
+ * @packageDocumentation
+ */
+
 import { convertIfPresent, copyIfPresent } from '../../common/encoding';
 import { ManifestEndpoint } from '../../runtime/manifest';
 import { CloudEvent, CloudFunction } from '../core';
@@ -147,19 +152,14 @@ export interface EventarcTriggerOptions extends options.EventHandlerOptions {
   retry?: boolean;
 }
 
-/**
- * A function that takes a {@link CloudEvent}.
- */
-export type CloudEventHandler = (event: CloudEvent<any>) => any | Promise<any>;
-
 /** Handles an Eventarc event published on the default channel.
  * @param eventType - Type of the event to trigger on.
  * @param handler - A function to execute when triggered.
  * @returns A function that you can export and deploy.
  */
 export function onCustomEventPublished<T = any>(
   eventType: string,
-  handler: CloudEventHandler
+  handler: (event: CloudEvent<T>) => any | Promise<any>
 ): CloudFunction<CloudEvent<T>>;
 
 /** Handles an Eventarc event.
@@ -169,12 +169,12 @@ export function onCustomEventPublished<T = any>(
  */
 export function onCustomEventPublished<T = any>(
   opts: EventarcTriggerOptions,
-  handler: CloudEventHandler
+  handler: (event: CloudEvent<T>) => any | Promise<any>
 ): CloudFunction<CloudEvent<T>>;
 
 export function onCustomEventPublished<T = any>(
   eventTypeOrOpts: string | EventarcTriggerOptions,
-  handler: CloudEventHandler
+  handler: (event: CloudEvent<T>) => any | Promise<any>
 ): CloudFunction<CloudEvent<T>> {
   let opts: EventarcTriggerOptions;
   if (typeof eventTypeOrOpts === 'string') {