Use StorageMap Error. Trait "Hash" is not implemented for type "Identity"

Hi this is a known error we are addressing. For now please add hash::Hash to your imports:

use std::{
    auth::msg_sender,
    result::Result,
    hash::Hash,
};

It also looks like you are creating an NFT, we have an Asset standard that applies to NFTs that can be found here. A basic implementation example of an NFT can be found here.

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