---
title: GameCenterMatchmakingRule.Attributes
framework: appstoreconnectapi
role: symbol
role_heading: Object
path: appstoreconnectapi/gamecentermatchmakingrule/attributes-data.dictionary
---

# GameCenterMatchmakingRule.Attributes

The attributes of a matchmaking rule.

## Declaration

```data
object GameCenterMatchmakingRule.Attributes
```

## Properties

description: A human-readable description of the rule. expression: Code that returns a Boolean or numeric value that the matchmaking rules algorithm executes to compare or filter match requests. referenceName: A name for the rule that’s unique within the scope of its rule set. type: The type or category of the rule that determines the return value and properties available in the expression. weight: A numeric value for the rule when type is either DISTANCE or MATCH.