Support for variadic tool parameters

[jarivehvilainen-rgb]

There is also a TODO line about this in the code in RegisteredElement.php -> prepareArguments.

I extended the framework in my code and am currently overriding RegisteredElement.php file. I achieved what I need by doing the following:

in RegisteredElement.php::handle

if (is_callable($this->handler)) {
   $reflection = $this->getReflectionForCallable($this->handler);
   $arguments = $this->prepareArguments($reflection, $arguments, $context);
   return call_user_func($this->handler, ...$arguments);
}

is replaced with:

if (is_callable($this->handler)) {
   $reflection = $this->getReflectionForCallable($this->handler);
   return call_user_func($this->handler, $arguments);
}

but I am not versed enough to parametrize this in to the framework itself