Undefined Index: on card_verification, Logic should be improved.

[vijayhardaha]

checkout-woocommerce-plugin/includes/class-wc-gateway-checkout-com-cards.php

Lines 565 to 580 in a21adf3

	if ( 'error' === $result['card_verification'] ) {
	WC_Checkoutcom_Utility::wc_add_notice_self( __( 'Unable to add payment method to your account.', 'checkout-com-unified-payments-api' ), 'error' );
	wp_redirect( $result['redirection_url'] );
	exit;
	}
	// Redirect to my-account/payment-method if card verification successful.
	// show notice to customer.
	if ( 'Card Verified' === $result['status'] && isset( $result['metadata']['card_verification'] ) ) {
	$this->save_token( get_current_user_id(), $result );
	WC_Checkoutcom_Utility::wc_add_notice_self( __( 'Payment method successfully added.', 'checkout-com-unified-payments-api' ), 'notice' );
	wp_redirect( $result['metadata']['redirection_url'] );
	exit;
	}

Line 565 with if ( 'error' === $result['card_verification'] ), created an notice error Undefined index: card_verification

So what should be actually checked here? $result['card_verification'] or $result['metadata']['card_verification'] ? OR both?