How to use the authlib.common.encoding.base64_to_int function in Authlib

def assertBase64IntEqual(self, x, y):
        self.assertEqual(base64_to_int(x), base64_to_int(y))

any_props_found = any(props_found)

        if any_props_found and not all(props_found):
            raise ValueError(
                'RSA key must include all parameters '
                'if any are present besides d')

        public_numbers = RSAPublicNumbers(
            base64_to_int(obj['e']), base64_to_int(obj['n']))

        if any_props_found:
            numbers = RSAPrivateNumbers(
                d=base64_to_int(obj['d']),
                p=base64_to_int(obj['p']),
                q=base64_to_int(obj['q']),
                dmp1=base64_to_int(obj['dp']),
                dmq1=base64_to_int(obj['dq']),
                iqmp=base64_to_int(obj['qi']),
                public_numbers=public_numbers)
        else:
            d = base64_to_int(obj['d'])
            p, q = rsa_recover_prime_factors(
                public_numbers.n, d, public_numbers.e)
            numbers = RSAPrivateNumbers(
                d=d,
                p=p,
                q=q,
                dmp1=rsa_crt_dmp1(d, p),
                dmq1=rsa_crt_dmq1(d, q),
                iqmp=rsa_crt_iqmp(p, q),
                public_numbers=public_numbers)

if any_props_found and not all(props_found):
            raise ValueError(
                'RSA key must include all parameters '
                'if any are present besides d')

        public_numbers = RSAPublicNumbers(
            base64_to_int(obj['e']), base64_to_int(obj['n']))

        if any_props_found:
            numbers = RSAPrivateNumbers(
                d=base64_to_int(obj['d']),
                p=base64_to_int(obj['p']),
                q=base64_to_int(obj['q']),
                dmp1=base64_to_int(obj['dp']),
                dmq1=base64_to_int(obj['dq']),
                iqmp=base64_to_int(obj['qi']),
                public_numbers=public_numbers)
        else:
            d = base64_to_int(obj['d'])
            p, q = rsa_recover_prime_factors(
                public_numbers.n, d, public_numbers.e)
            numbers = RSAPrivateNumbers(
                d=d,
                p=p,
                q=q,
                dmp1=rsa_crt_dmp1(d, p),
                dmq1=rsa_crt_dmq1(d, q),
                iqmp=rsa_crt_iqmp(p, q),
                public_numbers=public_numbers)

        return numbers.private_key(default_backend())

props = ['p', 'q', 'dp', 'dq', 'qi']
        props_found = [prop in obj for prop in props]
        any_props_found = any(props_found)

        if any_props_found and not all(props_found):
            raise ValueError(
                'RSA key must include all parameters '
                'if any are present besides d')

        public_numbers = RSAPublicNumbers(
            base64_to_int(obj['e']), base64_to_int(obj['n']))

        if any_props_found:
            numbers = RSAPrivateNumbers(
                d=base64_to_int(obj['d']),
                p=base64_to_int(obj['p']),
                q=base64_to_int(obj['q']),
                dmp1=base64_to_int(obj['dp']),
                dmq1=base64_to_int(obj['dq']),
                iqmp=base64_to_int(obj['qi']),
                public_numbers=public_numbers)
        else:
            d = base64_to_int(obj['d'])
            p, q = rsa_recover_prime_factors(
                public_numbers.n, d, public_numbers.e)
            numbers = RSAPrivateNumbers(
                d=d,
                p=p,
                q=q,
                dmp1=rsa_crt_dmp1(d, p),
                dmq1=rsa_crt_dmq1(d, q),
                iqmp=rsa_crt_iqmp(p, q),

if any_props_found and not all(props_found):
            raise ValueError(
                'RSA key must include all parameters '
                'if any are present besides d')

        public_numbers = RSAPublicNumbers(
            base64_to_int(obj['e']), base64_to_int(obj['n']))

        if any_props_found:
            numbers = RSAPrivateNumbers(
                d=base64_to_int(obj['d']),
                p=base64_to_int(obj['p']),
                q=base64_to_int(obj['q']),
                dmp1=base64_to_int(obj['dp']),
                dmq1=base64_to_int(obj['dq']),
                iqmp=base64_to_int(obj['qi']),
                public_numbers=public_numbers)
        else:
            d = base64_to_int(obj['d'])
            p, q = rsa_recover_prime_factors(
                public_numbers.n, d, public_numbers.e)
            numbers = RSAPrivateNumbers(
                d=d,
                p=p,
                q=q,
                dmp1=rsa_crt_dmp1(d, p),
                dmq1=rsa_crt_dmq1(d, q),
                iqmp=rsa_crt_iqmp(p, q),
                public_numbers=public_numbers)

        return numbers.private_key(default_backend())

def loads_public_key(self, obj):
        numbers = RSAPublicNumbers(
            base64_to_int(obj['e']),
            base64_to_int(obj['n'])
        )
        return numbers.public_key(default_backend())

def loads_public_key(self, obj):
        numbers = RSAPublicNumbers(
            base64_to_int(obj['e']),
            base64_to_int(obj['n'])
        )
        return numbers.public_key(default_backend())