string-template | A lightweight string replace engine for text-based templates

I'm sure I've read that Kotlin's "dollar operator" for string templates can be redefined, but their documentation on operator overloading does not indicate how to overload it, and their documentation on string templates, like most online tutorials on string templates, tell you merely how to use the dollar symbol. A search on StackOverflow likewise turned up no obvious questions that address this issue.

Is there a way to overload the Kotlin string template operator, AKA the dollar symbol?

For an example:

I want to use values from gradle.properties that should go into a template string.

A naive first:

I am updating my laravel from 5.5.* to 5.6.0. Upon composer install after updating my composer.json to require laravel 5.6.0 it is showing this:

vladimir-yuldashev/laravel-queue-rabbitmq 5.4 requires illuminate/support 5.4.* -> satisfiable by laravel/framework[v5.4.36], illuminate/support[v5.4.0, v5.4.13, v5.4.17, v5.4.19, v5.4.27, v5.4.36, v5.4.9].

And:

vladimir-yuldashev/laravel-queue-rabbitmq 5.4 requires illuminate/database 5.4.* -> satisfiable by laravel/framework[v5.4.36], illuminate/database[v5.4.0, v5.4.13, v5.4.17, v5.4.19, v5.4.27, v5.4.36, v5.4.9].

What version of vladimir-yuldashev/laravel-queue-rabbitmq is compatible with l5.6.0? Any help would be deeply appreciated.

Here is my composer.json file:

I get a string-template and a variable-length argument list. I need I need to insert arguments into the template and send the result.

For instance:

template: "%1s test %2s test %1s"

args: "CAT", "DOG"

Result: "CAT test DOG test CAT"

I tried to do it like this. But I got an error, because in fact, I'm trying to execute the string String.format("%1s test %2s test %1s", "value") which is really wrong.