How to fetch template

Hello,

I’m writing module and I have one problem. I don’t know how to fetch template in my module. I don’t want to use {embed} tag in main template. But I want to embed template via PHP.

Example: - my main template

{exp:my_module:auto_embed}

And in PHP I want to:

function auto_embed(){
    // here I want to embed/include other template based on
    // variables that I will include to this function
}