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EventData is a GraphQL union with seven variants. The __typename field identifies the variant:
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SwapEventData
union
A trade. See SwapEventData.
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MintEventData
union
An LP add. See MintEventData.
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BurnEventData
union
An LP remove. See BurnEventData.
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SyncEventData
union
V2 reserve sync. See SyncEventData.
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CollectEventData
union
V3 fee collection. See CollectEventData.
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CollectProtocolEventData
union
V3 protocol fee collection. See CollectProtocolEventData.
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PoolBalanceChangedEventData
union
Balancer V2 / Uniswap V4 pool rebalance. See PoolBalanceChangedEventData.

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Usage

data {
  __typename
  ... on SwapEventData { priceUsd priceUsdTotal amountNonLiquidityToken }
  ... on MintEventData { amount0 amount1 }
  ... on BurnEventData { amount0 amount1 }
  ... on PoolBalanceChangedEventData { sender amount0 amount1 protocolFeeAmount0 protocolFeeAmount1 }
}
getTokenEvents returns Swap / Mint / Burn / PoolBalanceChanged payloads. Sync / Collect / CollectProtocol are short-circuited to empty by the query (Codex contract).