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# Subprogress

Subprogress is used to establish parent-child relationship between two instances of `ProgressManager`.

```
struct Subprogress
```

## Overview

Subprogress is returned from a call to `subprogress(assigningCount:)` by a parent ProgressManager.
A child ProgressManager is then returned by calling `start(totalCount:)` on a Subprogress.

## Topics

### Instance Methods

[`func start(totalCount: Int?) -> ProgressManager`](/documentation/Foundation/Subprogress/start(totalCount:))

Instantiates a ProgressManager which is a child to the parent from which `self` is returned.

## Relationships

### Conforms To

[`Sendable`](/documentation/Swift/Sendable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

---

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