<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def main(input_bed, output_file, output_features=False, genome=None, only_canonical=False, short=False, extended=False, high_confidence=False, ambiguities_method=False, coding_only=False, collapse_exons=False, work_dir=False, is_debug=False):
 """ Annotating BED file based on reference features annotations. """

    logger.init(is_debug_=is_debug)

    if not genome:
        raise click.BadParameter('Error: please, specify genome build name with -g (e.g. `-g hg19`)', param='genome')

    if short:
        if extended:        raise click.BadParameter('--short and --extended can\'t be set both', param='extended')
        if output_features: raise click.BadParameter('--short and --output-features can\'t be set both', param='output_features')
    elif output_features or extended:
        extended = True
        short    = False

    if not verify_file(input_bed):
        click.BadParameter(f'Usage: {__file__} Input_BED_file -g hg19 -o Annotated_BED_file [options]', param='input_bed')
    input_bed = verify_file(input_bed, is_critical=True, description=f'Input BED file for {__file__}')

    if work_dir:
        work_dir = join(adjust_path(work_dir), os.path.splitext(basename(input_bed))[0])
        safe_mkdir(work_dir)
        info(f'Created work directory {work_dir}')
    else:
        work_dir = mkdtemp('bed_annotate')
        debug('Created temporary work directory {work_dir}')

    input_bed = clean_bed(input_bed, work_dir)
    input_bed = verify_bed(input_bed, is_critical=True, description=f'Input BED file for {__file__} after cleaning')

    output_file = adjust_path(output_file)

    output_file = annotate(
        input_bed, output_file, work_dir, genome=genome,
        only_canonical=only_canonical, short=short, extended=extended,
        high_confidence=high_confidence, collapse_exons=collapse_exons,
        output_features=output_features,
        ambiguities_method=ambiguities_method, coding_only=coding_only,
        is_debug=is_debug)

    if not work_dir:
        debug(f'Removing work directory {work_dir}')
        shutil.rmtree(work_dir)

    info(f'Done, saved to {output_file}')