---
title: "init(origin:itemCount:totalItemCount:metrics:)"
framework: createmlcomponents
role: symbol
role_heading: Initializer
path: "createmlcomponents/event/init(origin:itemcount:totalitemcount:metrics:)"
---

# init(origin:itemCount:totalItemCount:metrics:)

Creates an event.

## Declaration

```swift
init(origin: String, itemCount: Int, totalItemCount: Int? = nil, metrics: [MetricsKey : any Sendable])
```

## Parameters

- `origin`: A description of the event’s origin.
- `itemCount`: The number of items processed so far.
- `totalItemCount`: The total number of items being processed.
- `metrics`: A dictionary of custom metrics values.