Repository: LMCache/LMCache
File: lmcache/v1/storage_backend/__init__.py (Python)

Code before:
        # change that in the future.
        storage_backends[str(weka_backend)] = weka_backend
    if config.gds_path is not None:
        gds_backend = GdsBackend(config, loop, memory_allocator, dst_device)
        storage_backends[str(gds_backend)] = gds_backend
    if config.remote_url is not None:
        remote_backend = RemoteBackend(
            config, metadata, loop, local_cpu_backend, dst_device, lookup_server
        )
        backend_name = str(remote_backend)
        storage_backends[backend_name] = remote_backend

    if config.enable_nixl and not config.local_cpu:
        pass
    else:
        # Create dynamic backends from configuration
        create_dynamic_backends(
            config,
            metadata,
            loop,
            memory_allocator,
            local_cpu_backend,
            dst_device,
            lookup_server,
            storage_backends,
        )

    # Only wrap if audit is enabled in config
    if config.extra_config is not None and config.extra_config.get(
        "audit_backend_enabled", False
    ):
        # First Party
        from lmcache.v1.storage_backend.audit_backend import AuditBackend

        # Conditionally wrap backends with audit logging if enabled in config
        audited_backends: OrderedDict[str, StorageBackendInterface] = OrderedDict()
        for name, backend in storage_backends.items():
            # Wrap each normal backend with AuditBackend
            if not isinstance(backend, LocalCPUBackend):
                audited_backend = AuditBackend(backend)
                audited_backends[name] = audited_backend
                logger.info(f"Wrapped {name} with AuditBackend")
            else:
                audited_backends[name] = backend
                logger.info(f"Do not wrap {name} as it is a LocalCPUBackend")
        return audited_backends
    else:
        # If audit is not enabled, use the original backends
        return storage_backends


Review comment (suggestion):
Using a placeholder like `pass` is ok in test code but not here. I think the code below is cleaner and is easier to understand the logic.

```suggestion
    if not config.enable_nixl or config.local_cpu:
        # Create dynamic backends from configuration
        create_dynamic_backends(
            config,
            metadata,
            loop,
            memory_allocator,
            local_cpu_backend,
            dst_device,
            lookup_server,
            storage_backends,
        )
```

Code after:
    if config.gds_path is not None:
        gds_backend = GdsBackend(config, loop, memory_allocator, dst_device)
        storage_backends[str(gds_backend)] = gds_backend
    if config.remote_url is not None:
        remote_backend = RemoteBackend(
            config, metadata, loop, local_cpu_backend, dst_device, lookup_server
        )
        backend_name = str(remote_backend)
        storage_backends[backend_name] = remote_backend

    if not config.enable_nixl or config.local_cpu:
        # Create dynamic backends from configuration
        create_dynamic_backends(
            config,
            metadata,
            loop,
            memory_allocator,
            local_cpu_backend,
            dst_device,
            lookup_server,
            storage_backends,
        )

    # Only wrap if audit is enabled in config
    if config.extra_config is not None and config.extra_config.get(
        "audit_backend_enabled", False
    ):
        # First Party
        from lmcache.v1.storage_backend.audit_backend import AuditBackend

        # Conditionally wrap backends with audit logging if enabled in config
        audited_backends: OrderedDict[str, StorageBackendInterface] = OrderedDict()
        for name, backend in storage_backends.items():
            # Wrap each normal backend with AuditBackend
            if not isinstance(backend, LocalCPUBackend):
                audited_backend = AuditBackend(backend)
                audited_backends[name] = audited_backend
                logger.info(f"Wrapped {name} with AuditBackend")
            else:
                audited_backends[name] = backend
                logger.info(f"Do not wrap {name} as it is a LocalCPUBackend")
        return audited_backends
    else:
        # If audit is not enabled, use the original backends
        return storage_backends