def human_size(byte_count: int) -> str:
    """Output byte amount in human readable format"""
    amount = float(byte_count)
    for unit in ['', 'Ki', 'Mi', 'Gi', 'Ti', 'Pi', 'Ei', 'Zi', 'Yi']:
        if amount < 1024.0:
            break
        amount /= 1024.0
    return f'{amount:.2f}{unit}B'


def human_to_bytes(text: str) -> float:
    split_index = 0
    while '0' <= text[split_index] <= '9':
        split_index += 1
        if split_index == len(text):
            return float(text)
    amount = float(text[:split_index])
    unit = text[split_index:].strip()

    if not unit:
        return amount
    if unit not in ['KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB']:
        raise RuntimeError(f'Unrecognized unit : {unit}')
    for final_unit in ['KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB']:
        amount *= 1024.0
        if unit == final_unit:
            return amount