Took care of ISM by reordering the items list before generating ISM metadata_path.

### Horizontally concatenate input items into one long file; default = false

# concatenate_input: true

### Specify the concatenation order in a list of strings. If not specified, the concatenation order would be

### as per the filesystem on the users' device

### Should only be used if concatenate_input = true

# concatenation_order: []

### Specify preamble duration in ms; default = 0

# preamble: 40

### Flag wheter to use noise (amplitude +-4) for the preamble or silence; default = false (silence)

    concat_teardown,

    preprocess,

    process_item,

    reorder_items_list,

)

from ivas_processing_scripts.utils import DirManager, apply_func_parallel

        # set up logging

        logger = logging_init(args, cfg)

        # Re-ordering items based on concatenation order

        if cfg.concatenate_input and cfg.concatenation_order is not None:

            cfg.items_list = reorder_items_list(cfg.items_list, cfg.concatenation_order)

        # check for ISM metadata

        if cfg.input["fmt"].startswith("ISM"):

            metadata = check_ISM_metadata(

        pass

def reorder_files(items_list: list, concatenation_order: list) -> list:

def reorder_items_list(items_list: list, concatenation_order: list) -> list:

    name_to_full = {Path(full_file).name: full_file for full_file in items_list}

    ordered_full_files = [

        name_to_full[name] for name in concatenation_order if name in name_to_full

            warn(

                f"Warning: Mismatch in specified concatenation order and number of items to process!\nNumber of items specified in concatenation order: {n_concatenation_order}\nNumber of items in the directory: {n_items_list}\nConcatenation will use the following order:\n{cfg.concatenation_order}"

            )

        cfg.items_list = reorder_files(cfg.items_list, cfg.concatenation_order)

    if any([i for i in cfg.items_list if i.suffix == ".txt"]):

        raise SystemExit("Concatenation for text files is unsupported")