signTypedData

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function signTypedData(client, signer, params): Promise<`0x${string}`>;

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// Sign typed data
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const signature = await client.signTypedData({
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  domain: {
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    name: "Example DApp",
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    version: "1",
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    chainId: 1,
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    verifyingContract: "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC",
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  },
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  types: {
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    Person: [
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      { name: "name", type: "string" },
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      { name: "wallet", type: "address" },
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    ],
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  },
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  primaryType: "Person",
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  message: {
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    name: "John Doe",
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    wallet: "0xAaAaAaAaAaAaAaAaAaAAAAAAAAaaaAaAaAaaAaAa",
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  },
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});