def is_readable_codon(nucleic_sequence: str) -> bool:
    """
    A function that determines if it is a readable codon

    :param nucleic_sequence:
    :return is_readable_codon:
    """
    # if length of codon string is multiple of 3, it's readable
    if len(nucleic_sequence) % 3 == 0:
        is_readable = True
    else:
        is_readable = False

    return is_readable