def get_size(bytes_, suffix='B'):
    """
    Scale bytes to its proper format
    e.g:
        1253656 => '1.20MB'
        1253656678 => '1.17GB'
    """
    factor = 1024
    value = ''
    for unit in ['', 'K', 'M', 'G', 'T', 'P']:
        if bytes_ < factor:
            value = f'{bytes_:.2f}{unit}{suffix}'
            break
        bytes_ /= factor
    return value
