cw721-basic 0.9.2

Basic implementation cw721 NFTs
Documentation 
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use cosmwasm_std::StdError;
use thiserror::Error;

#[derive(Error, Debug, PartialEq)]
pub enum ContractError {
    #[error("{0}")]
    Std(#[from] StdError),

    #[error("Unauthorized")]
    Unauthorized {},

    #[error("token_id already claimed")]
    Claimed {},

    #[error("Cannot set approval that is already expired")]
    Expired {},
}