PHP Telegram Bot VS sendgrid-php

I was looking into he code of the PHP telegram bot for some troubleshooting. While looking at the Command.php, I noticed the class Command has several calls to $this->getMessage(), but it has no declaration for the function, nor inherits from any other class. Can anyone tell me what am I missing here? Here's a link to the file on github: https://github.com/php-telegram-bot/core/blob/master/src/Commands/Command.php

$customers = array() foreach ($emails as $i => $email) { $customers[] = array( 'email' => $email, 'name' - $names[$i], 'accountId' => $accountIds[$i], ); } foreach ($customers as $customer) { // https://github.com/sendgrid/sendgrid-php/blob/main/USE_CASES.md#send-an-email-to-a-single-recipient }

To use the API instead of SMTP, you can use the SDK. https://github.com/sendgrid/sendgrid-php

SendGrid has a pretty good PHP library which should help you getting started sending bulk emails. They also have support for templating which is very helpful when wanting non-techy types to edit emails.