---
title: "init(type:quantity:startDate:endDate:device:metadata:)"
framework: healthkit
role: symbol
role_heading: Initializer
path: "healthkit/hkquantitysample/init(type:quantity:startdate:enddate:device:metadata:)"
---

# init(type:quantity:startDate:endDate:device:metadata:)

## Declaration

```swift
convenience init(type quantityType: HKQuantityType, quantity: HKQuantity, startDate: Date, endDate: Date, device: HKDevice?, metadata: [String : Any]?)
```