def no_backward_sync(self, module: Module, enabled: bool) -> AbstractContextManager:
        """Blocks the synchronization of gradients during the backward pass.

        This is a context manager. It is only effective if it wraps a call to `.backward()`.

        """
Blocks the synchronization of gradients during the backward pass.

        This is a context manager. It is only effective if it wraps a call to `.backward()`.

        
src/lightning/fabric/strategies/strategy.py