SesV2Client using wrong SendEmail command

[awsqed]

I'm trying to register a custom mail transport in Laravel 8 using SES v2 API, but when I try sending an email with the transport, I get

InvalidArgumentException with message 'Found 3 errors while validating the input provided for the SendEmail operation:
[Source] is missing and is a required parameter
[Destination] is missing and is a required parameter
[Message] is missing and is a required parameter'

I double-checked the client and pretty sure it is SesV2Client, any ideas why it using the SendEmail command of SesClient?

EDIT: Nevermind, I have to change 'service' => 'sesv2' in order to use SES v2 API.