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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 convert_catalog_id_to_object_id_string(catalog_id):
 """When doing hierarchies, need to convert a catalogId into an ObjectId, so convert to a string, then into a hex format. i.e. Bank Assessment hierarchy should become BANKASSESSME '42414e4b4153534553534d45' """


    if not isinstance(catalog_id, Id):
        raise TypeError('input needs to be an Id')
    seed_str = catalog_id.get_identifier() + catalog_id.get_authority() + '000000000000'
    try:
        seed_str = str.encode(seed_str[:12])
    except TypeError:
        # sometimes unicode is returned, in which case Python 2 can't handle it
        seed_str = seed_str[:12]
    seed_str = binascii.hexlify(seed_str)
    try:
        # python 3
        seed_str = str(seed_str, 'utf8')
    except TypeError:
        # python 2
        seed_str = str(seed_str)
    return seed_str