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type WalletCapabilities = {
[chainId: `0x${string}`]: {
  atomic: {
     status: "supported" | "unsupported";
  };
  paymasterService: {
     supported: boolean;
  };
  dataSuffix: {
     supported: boolean;
  };
};
};
The capabilities of the wallet by chainId. If the wallet does not support Smart Account operations on a chain, it will not be included in the object.

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Index Signature

[chainId: `0x${string}`]: {
  atomic: {
     status: "supported" | "unsupported";
  };
  paymasterService: {
     supported: boolean;
  };
  dataSuffix: {
     supported: boolean;
  };
}

​
See

https://eips.ethereum.org/EIPS/eip-5792#wallet_getcapabilities