generateAirdropSignatureERC721
Generates the req and signature for sending ERC721 airdrop.
import {  airdropERC721WithSignature,  generateAirdropSignatureERC721,} from "thirdweb/extensions/airdrop"; // list of recipients and tokenIds to airdrop for each recipientconst contents = [  { recipient: "0x...", tokenId: 0 },  { recipient: "0x...", tokenId: 1 },  { recipient: "0x...", tokenId: 2 },]; const { req, signature } = await generateAirdropSignatureERC721({  account,  contract,  airdropRequest: {    tokenAddress: "0x...", // address of the ERC721 token to airdrop    contents,  },}); const transaction = airdropERC721WithSignature({  contract,  req,  signature,});await sendTransaction({ transaction, account });function generateAirdropSignatureERC721(options: GenerateAirdropERC721SignatureOptions) : Promise<{ req: { contents: readonly Array<{ recipient: string; tokenId: bigint }>; expirationTimestamp: bigint; tokenAddress: string; uid: `0x${string}` }; signature: `0x${string}` }>The options for the airdrop.