def main_params(self, optimizer: Optimizer) -> _PARAMETERS:
        """The main params of the model.

        Returns the plain model params here. Maybe different in other precision plugins.

        """
        for group in optimizer.param_groups:
            yield from group["params"]
The main params of the model.

        Returns the plain model params here. Maybe different in other precision plugins.

        
src/lightning/fabric/plugins/precision/precision.py