# update

Source: https://www.nianticspatial.com/docs/api/swift/NSDK.SceneSegmentationChannels.method-update/

update

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## Declaration

@discardableResult mutating func update(with newMember: Self.Element) -> Self.Element?

#### Summary

Inserts the given element into the set.
If newMember is not contained in the set but subsumes current members
of the set, the subsumed members are returned.
    var options: ShippingOptions = [.secondDay, .priority]
    let replaced = options.update(with: .express)
    print(replaced == .secondDay)
    // Prints "true"

#### Returns

The intersection of [newMember] and the set if the
  intersection was nonempty; otherwise, nil.

### Parameters

| Name | Type | Summary |
| --- | --- | --- |
| newMember | Self.Element | - |

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