How to use the fastecdsa.curve.secp256k1.is_point_on_curve function in fastecdsa

def public_key(self, value):
        if value is None:
            return
        if isinstance(value, bytes):
            value = HDKey(value)
        if value.is_private:
            value = value.public()
        self.x, self.y = value.public_point()

        if USE_FASTECDSA:
            if not fastecdsa_secp256k1.is_point_on_curve((self.x, self.y)):
                raise BKeyError('Invalid public key, point is not on secp256k1 curve')
        self._public_key = value