// Create Attestation
    let attestation_data = TestData {
        name: "attest".to_string(),
        location: 11,
    };
    let clock: Clock = ctx.banks_client.get_sysvar().await.unwrap();
    let expiry: i64 = clock.unix_timestamp + 60;
    let mut serialized_attestation_data = Vec::new();
    attestation_data
        .serialize(&mut serialized_attestation_data)
        .unwrap();
    let nonce = Pubkey::new_unique();
    let attestation_pda = Pubkey::find_program_address(
        &[
            b"attestation",
            &credential.to_bytes(),
            &schema.to_bytes(),
            &nonce.to_bytes(),
        ],
        &solana_attestation_service_client::programs::SOLANA_ATTESTATION_SERVICE_ID,
    )
    .0;
    let create_attestation_ix = CreateAttestationBuilder::new()
        .payer(ctx.payer.pubkey())
        .authority(authority.pubkey())
        .credential(credential)
        .schema(schema)
        .attestation(attestation_pda)
        .system_program(system_program::ID)
        .data(serialized_attestation_data.clone())
        .expiry(expiry)
        .nonce(nonce)
        .instruction();