def check_email(self, email) -> dict:
        """Check available (free, not registred) email"""
        return self.private_request(
            "users/check_email/",
            {
                "android_device_id": self.device_id,
                "login_nonce_map": "{}",
                "login_nonces": "[]",
                "email": email,
                "qe_id": str(uuid4()),
                "waterfall_id": self.waterfall_id,
            },
        )
Check available (free, not registred) email
instagrapi/mixins/signup.py