in src/ppxgboost/PPKey.py [0:0]
def __init__(self, public_key: PaillierPublicKey, prf_key: bytes, ope_encryptor: OPE):
"""
:param public_key: paillier public key
:param prf_key: PRF key
:param ope_encryptor: OPE key
"""
self.__public_key = public_key
self.__prf_key = prf_key
self.__ope_encryptor = ope_encryptor