Describe tablePrefix use in Migrations (plugin development)

[criticalmash]

In the Migrations documentation there is this line

$this->insert('{{%mytablename}}', $rows);

The docs for migration->insert() say it only takes a string, which gives the impression that it's just the literal name of the table, but this is obviously some sort of template. I'm guessing if the prefix was set to craft_ the table name would come out as craft_mytablename. But I can't be sure of that due to the lack of documentation.

This all started when I tried to follow the Element Types documentation. If you're following along you first create a model called products then create an Install migration using...

$this->createTable('{{%plugin_products}}',
...

I'm guessing that table name should have been {{%products}}'