How to Work with Non-Mintable Assets ​

fn register_non_mintable_asset(
    iroha: &Client,
) {
    let magical_keys = "magical_key#wonderland"
        .parse::<AssetDefinitionId>()
        .unwrap();
    // register keys as an asset definition
    let register_keys_as_a_concept = Register::asset_definition(
        AssetDefinition::new(
            magical_keys.clone(),
            AssetValueType::Numeric(NumericSpec::integer()),
        ).mintable_once()
    );
    let alice = "alice@wonderland".parse().unwrap();
    // Alice owns ten keys and cannot mint more
    let initial_keys_of_alice = Asset::new(
        AssetId::new(magical_keys, alice), 
        10_u32
    );
    let register_keys_of_alice = Register::asset(initial_keys_of_alice);
    let instructions: [RegisterBox; _] = [
        register_keys_as_a_concept.into(),
        register_keys_of_alice.into(),
    ];
    iroha.submit_all(instructions).unwrap();
}

fn register_non_mintable_asset(
    iroha: &Client,
) {
    let magical_keys = "magical_key#wonderland"
        .parse::<AssetDefinitionId>()
        .unwrap();
    // register keys as an asset definition
    let register_keys_as_a_concept = Register::asset_definition(
        AssetDefinition::new(
            magical_keys.clone(),
            AssetValueType::Numeric(NumericSpec::integer()),
        ).mintable_once()
    );
    let alice = "alice@wonderland".parse().unwrap();
    // Alice owns ten keys and cannot mint more
    let initial_keys_of_alice = Asset::new(
        AssetId::new(magical_keys, alice), 
        10_u32
    );
    let register_keys_of_alice = Register::asset(initial_keys_of_alice);
    let instructions: [RegisterBox; _] = [
        register_keys_as_a_concept.into(),
        register_keys_of_alice.into(),
    ];
    iroha.submit_all(instructions).unwrap();
}

fn mint_non_mintable_asset(
    iroha: &Client,
) {
    // Alice owns zero keys and can mint once
    let keys_of_alice = "magical_key##alice@wonderland".parse().unwrap();
    let zero_keys_of_alice = Asset::new(
        keys_of_alice.clone(), 
        0_u32
    );
    let register_keys_of_alice = Register::asset(zero_keys_of_alice);
    let mint_keys_for_alice = Mint::asset_numeric(10_u32, keys_of_alice);
    let instructions: [InstructionBox; _] = [
        register_keys_as_a_concept.into(),
        register_keys_of_alice.into(),
        mint_keys_for_alice.into(),
    ];
    iroha.submit_all(instructions).unwrap();
}

fn mint_non_mintable_asset(
    iroha: &Client,
) {
    // Alice owns zero keys and can mint once
    let keys_of_alice = "magical_key##alice@wonderland".parse().unwrap();
    let zero_keys_of_alice = Asset::new(
        keys_of_alice.clone(), 
        0_u32
    );
    let register_keys_of_alice = Register::asset(zero_keys_of_alice);
    let mint_keys_for_alice = Mint::asset_numeric(10_u32, keys_of_alice);
    let instructions: [InstructionBox; _] = [
        register_keys_as_a_concept.into(),
        register_keys_of_alice.into(),
        mint_keys_for_alice.into(),
    ];
    iroha.submit_all(instructions).unwrap();
}