NAC_Blockchain/charter-std/acc/acc721.ch

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pub fn mint_nft(to: Address, token_id: u256) -> bool {
require(!to.is_zero(), "Mint to zero address");
return true;
}
pub fn owner_of(token_id: u256) -> Address {
return Address::zero();
}
pub fn transfer_nft(to: Address, token_id: u256) -> bool {
require(!to.is_zero(), "Transfer to zero address");
return true;
}