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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def batch(ctx, path, recursive, watch):
 """ Normalize files in a path. Apply normalizations over all files found in a given path. The normalizations applied will be those defined in the config file. If no config is specified, the default normalizations will be used. """

    batch = Batch(ctx.obj['config'], ctx.obj['cucco'])

    if os.path.exists(path):
        if watch:
            batch.watch(path, recursive)
        elif os.path.isfile(path):
            batch.process_file(path)
        else:
            batch.process_files(path, recursive)
    else:
        click.echo('Error: Specified path doesn\'t exists', err=True)
        sys.exit(-1)