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# previousMessagesLimit

The maximum number of previous messages that contribute to generating suggested actions.

```
static var previousMessagesLimit: Int { get }
```

## Discussion

When you pass an array of [`SuggestedActionsMessage`](/documentation/SuggestedActions/SuggestedActionsMessage) values to the
`previousMessages` parameter of
[`init(message:previousMessages:)`](/documentation/SuggestedActions/SuggestedActionsView/init(message:previousMessages:)) or
[`generate(message:previousMessages:)`](/documentation/SuggestedActions/SuggestedActionsView/generate(message:previousMessages:)), the framework only
considers a limited number of provided previous messages. `previousMessagesLimit` represents
this limit. The framework ignores any older messages that exceed it.

The value of `previousMessagesLimit` may change between OS releases. Read it at runtime rather than
hardcoding a limit to avoid constructing [`SuggestedActionsMessage`](/documentation/SuggestedActions/SuggestedActionsMessage) instances that
the framework doesn’t use, as shown in the following example:

```swift
let previousMessages = allPreviousMessages
    .suffix(SuggestedActionsMessage.previousMessagesLimit)
    .map(\.suggestedActionsMessage)

SuggestedActionsView(
    message: message.suggestedActionsMessage,
    previousMessages: previousMessages
)
```

---

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