#[entry_point]
pub fn migrate(deps: DepsMut, _env: Env, _msg: MigrateMsg) -> Result<Response, ContractError> {
    validate_contract!(deps, CONTRACT_NAME, CONTRACT_VERSION);
    set_contract_version(deps.storage, CONTRACT_NAME, CONTRACT_VERSION)?;
    Ok(Response::default())
}
#[cfg_attr(not(feature = "library"), entry_point)]
#[migrate_version(MIGRATE_VERSION)]
pub fn migrate(
    deps: DepsMut,
    env: Env,
    msg: MigrateMsg,
    migrate_info: MigrateInfo
) -> StdResult<Response>
